15121252 has 6 divisors (see below), whose sum is σ = 26462198. Its totient is φ = 7560624.

The previous prime is 15121247. The next prime is 15121277. The reversal of 15121252 is 25212151.

It can be written as a sum of positive squares in only one way, i.e., 10342656 + 4778596 = 3216^2 + 2186^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1890153 + ... + 1890160.

Almost surely, 2^15121252 is an apocalyptic number.

It is an amenable number.

15121252 is a deficient number, since it is larger than the sum of its proper divisors (11340946).

15121252 is a wasteful number, since it uses less digits than its factorization.

15121252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3780317 (or 3780315 counting only the distinct ones).

The product of its digits is 200, while the sum is 19.

The square root of 15121252 is about 3888.6054055407. The cubic root of 15121252 is about 247.2839429975.

The spelling of 15121252 in words is "fifteen million, one hundred twenty-one thousand, two hundred fifty-two".