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1136385 = 32525253
BaseRepresentation
bin100010101011100000001
32010201211100
410111130001
5242331020
640205013
712442035
oct4253401
92121740
101136385
11706868
12469769
1330a323
142181c5
15176a90
hex115701

1136385 has 12 divisors (see below), whose sum is σ = 1969812. Its totient is φ = 606048.

The previous prime is 1136383. The next prime is 1136389. The reversal of 1136385 is 5836311.

It can be written as a sum of positive squares in 2 ways, for example, as 804609 + 331776 = 897^2 + 576^2 .

It is not a de Polignac number, because 1136385 - 21 = 1136383 is a prime.

It is a Curzon number.

1136385 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1136383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12582 + ... + 12671.

It is an arithmetic number, because the mean of its divisors is an integer number (164151).

21136385 is an apocalyptic number.

1136385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1136385 is a deficient number, since it is larger than the sum of its proper divisors (833427).

1136385 is a wasteful number, since it uses less digits than its factorization.

1136385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25264 (or 25261 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 1136385 is about 1066.0136021646. The cubic root of 1136385 is about 104.3538550638.

Subtracting from 1136385 its product of digits (2160), we obtain a square (1134225 = 10652).

It can be divided in two parts, 1136 and 385, that added together give a square (1521 = 392).

The spelling of 1136385 in words is "one million, one hundred thirty-six thousand, three hundred eighty-five".

Divisors: 1 3 5 9 15 45 25253 75759 126265 227277 378795 1136385