13865052 has 24 divisors (see below), whose sum is σ = 33142032. Its totient is φ = 4508800.

The previous prime is 13865051. The next prime is 13865063. The reversal of 13865052 is 25056831.

13865052 = 19² + 20² + ... + 346².

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13865051) 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, 13599 + ... + 14582.

It is an arithmetic number, because the mean of its divisors is an integer number (1380918).

Almost surely, 2^13865052 is an apocalyptic number.

13865052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13865052 is an abundant number, since it is smaller than the sum of its proper divisors (19276980).

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

13865052 is a wasteful number, since it uses less digits than its factorization.

13865052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28229 (or 28227 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 13865052 is about 3723.5805349153. The cubic root of 13865052 is about 240.2373346681.

The spelling of 13865052 in words is "thirteen million, eight hundred sixty-five thousand, fifty-two".