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BaseRepresentation
bin101001100010101001111
32120011020222
411030111033
5322024411
645101555
714366414
oct5142517
92504228
101361231
1184a793
125578bb
13388781
1427610b
151bd4db
hex14c54f

1361231 has 8 divisors (see below), whose sum is σ = 1429680. Its totient is φ = 1294272.

The previous prime is 1361197. The next prime is 1361273. The reversal of 1361231 is 1321631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1361231 - 210 = 1360207 is a prime.

It is a super-2 number, since 2×13612312 = 3705899670722, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1796 + ... + 2438.

It is an arithmetic number, because the mean of its divisors is an integer number (178710).

21361231 is an apocalyptic number.

1361231 is a deficient number, since it is larger than the sum of its proper divisors (68449).

1361231 is an equidigital number, since it uses as much as digits as its factorization.

1361231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745.

The product of its digits is 108, while the sum is 17.

The square root of 1361231 is about 1166.7180464877. The cubic root of 1361231 is about 110.8265830902.

Adding to 1361231 its reverse (1321631), we get a palindrome (2682862).

The spelling of 1361231 in words is "one million, three hundred sixty-one thousand, two hundred thirty-one".

Divisors: 1 29 73 643 2117 18647 46939 1361231