13285756 has 12 divisors (see below), whose sum is σ = 25363800. Its totient is φ = 6038960.

The previous prime is 13285717. The next prime is 13285757. The reversal of 13285756 is 65758231.

It is a super-2 number, since 2×13285756² = 353022624983072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13285757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150931 + ... + 151018.

It is an arithmetic number, because the mean of its divisors is an integer number (2113650).

Almost surely, 2^13285756 is an apocalyptic number.

It is an amenable number.

13285756 is a deficient number, since it is larger than the sum of its proper divisors (12078044).

13285756 is a wasteful number, since it uses less digits than its factorization.

13285756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301964 (or 301962 counting only the distinct ones).

The product of its digits is 50400, while the sum is 37.

The square root of 13285756 is about 3644.9630999504. The cubic root of 13285756 is about 236.8438383274.

It can be divided in two parts, 13285 and 756, that added together give a palindrome (14041).

The spelling of 13285756 in words is "thirteen million, two hundred eighty-five thousand, seven hundred fifty-six".