13765536 has 36 divisors (see below), whose sum is σ = 39146562. Its totient is φ = 4588416.

The previous prime is 13765511. The next prime is 13765553. The reversal of 13765536 is 63556731.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11861136 + 1904400 = 3444^2 + 1380^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 13765536.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23611 + ... + 24186.

Almost surely, 2^13765536 is an apocalyptic number.

13765536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13765536 is an abundant number, since it is smaller than the sum of its proper divisors (25381026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13765536 is a wasteful number, since it uses less digits than its factorization.

13765536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47813 (or 47802 counting only the distinct ones).

The product of its digits is 56700, while the sum is 36.

The square root of 13765536 is about 3710.1935259498. The cubic root of 13765536 is about 239.6611885869.

The spelling of 13765536 in words is "thirteen million, seven hundred sixty-five thousand, five hundred thirty-six".