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1121481 = 323532
BaseRepresentation
bin100010001110011001001
32002222101100
410101303021
5241341411
640012013
712350424
oct4216311
92088340
101121481
116a6649
12461009
133035ca
142129bb
15172456
hex111cc9

1121481 has 9 divisors (see below), whose sum is σ = 1624519. Its totient is φ = 745536.

The previous prime is 1121453. The next prime is 1121509. The reversal of 1121481 is 1841211.

The square root of 1121481 is 1059.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (1121453) and next prime (1121509).

It can be written as a sum of positive squares in only one way, i.e., 455625 + 665856 = 675^2 + 816^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 1121481 - 29 = 1120969 is a prime.

It is a super-2 number, since 2×11214812 = 2515439266722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121431) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3001 + ... + 3353.

21121481 is an apocalyptic number.

1121481 is the 1059-th square number.

1121481 is the 530-th centered octagonal number.

It is an amenable number.

1121481 is a deficient number, since it is larger than the sum of its proper divisors (503038).

1121481 is an frugal number, since it uses more digits than its factorization.

1121481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712 (or 356 counting only the distinct ones).

The product of its digits is 64, while the sum is 18.

The cubic root of 1121481 is about 103.8956361838.

Multiplying 1121481 by its product of digits (64), we get a square (71774784 = 84722).

Adding to 1121481 its reverse (1841211), we get a palindrome (2962692).

The spelling of 1121481 in words is "one million, one hundred twenty-one thousand, four hundred eighty-one".

Divisors: 1 3 9 353 1059 3177 124609 373827 1121481