139565452 has 24 divisors (see below), whose sum is σ = 264933200. Its totient is φ = 63948096.

The previous prime is 139565423. The next prime is 139565471. The reversal of 139565452 is 254565931.

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 7 ways as a sum of consecutive naturals, for example, 2427 + ... + 16882.

Almost surely, 2^139565452 is an apocalyptic number.

It is an amenable number.

139565452 is a deficient number, since it is larger than the sum of its proper divisors (125367748).

139565452 is a wasteful number, since it uses less digits than its factorization.

139565452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19465 (or 19463 counting only the distinct ones).

The product of its digits is 162000, while the sum is 40.

The square root of 139565452 is about 11813.7822901897. The cubic root of 139565452 is about 518.7116181599.

The spelling of 139565452 in words is "one hundred thirty-nine million, five hundred sixty-five thousand, four hundred fifty-two".