12531922 has 8 divisors (see below), whose sum is σ = 20243916. Its totient is φ = 5783952.

The previous prime is 12531919. The next prime is 12531977. The reversal of 12531922 is 22913521.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12173121 + 358801 = 3489^2 + 599^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240973 + ... + 241024.

Almost surely, 2^12531922 is an apocalyptic number.

12531922 is a deficient number, since it is larger than the sum of its proper divisors (7711994).

12531922 is a wasteful number, since it uses less digits than its factorization.

12531922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482012.

The product of its digits is 1080, while the sum is 25.

The square root of 12531922 is about 3540.0454799338. The cubic root of 12531922 is about 232.2768321449.

The spelling of 12531922 in words is "twelve million, five hundred thirty-one thousand, nine hundred twenty-two".