16231252 has 6 divisors (see below), whose sum is σ = 28404698. Its totient is φ = 8115624.

The previous prime is 16231217. The next prime is 16231273. The reversal of 16231252 is 25213261.

It can be written as a sum of positive squares in only one way, i.e., 11195716 + 5035536 = 3346^2 + 2244^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2028903 + ... + 2028910.

Almost surely, 2^16231252 is an apocalyptic number.

It is an amenable number.

16231252 is a deficient number, since it is larger than the sum of its proper divisors (12173446).

16231252 is a wasteful number, since it uses less digits than its factorization.

16231252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4057817 (or 4057815 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 16231252 is about 4028.8027998402. The cubic root of 16231252 is about 253.1924046880.

Subtracting 16231252 from its reverse (25213261), we obtain a square (8982009 = 2997²).

The spelling of 16231252 in words is "sixteen million, two hundred thirty-one thousand, two hundred fifty-two".