15021252 has 36 divisors (see below), whose sum is σ = 38900316. Its totient is φ = 4884480.

The previous prime is 15021239. The next prime is 15021269. The reversal of 15021252 is 25212051.

It can be written as a sum of positive squares in 2 ways, for example, as 4562496 + 10458756 = 2136^2 + 3234^2 .

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 (18).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3613 + ... + 6564.

Almost surely, 2^15021252 is an apocalyptic number.

15021252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15021252 is an abundant number, since it is smaller than the sum of its proper divisors (23879064).

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

15021252 is a wasteful number, since it uses less digits than its factorization.

15021252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10228 (or 10223 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 15021252 is about 3875.7259965070. The cubic root of 15021252 is about 246.7376234465.

The spelling of 15021252 in words is "fifteen million, twenty-one thousand, two hundred fifty-two".