452139956 has 12 divisors (see below), whose sum is σ = 837788868. Its totient is φ = 212771712.

The previous prime is 452139943. The next prime is 452139971. The reversal of 452139956 is 659931254.

It can be written as a sum of positive squares in 2 ways, for example, as 165379600 + 286760356 = 12860^2 + 16934^2 .

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3324491 + ... + 3324626.

It is an arithmetic number, because the mean of its divisors is an integer number (69815739).

Almost surely, 2^452139956 is an apocalyptic number.

It is an amenable number.

452139956 is a deficient number, since it is larger than the sum of its proper divisors (385648912).

452139956 is a wasteful number, since it uses less digits than its factorization.

452139956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6649138 (or 6649136 counting only the distinct ones).

The product of its digits is 291600, while the sum is 44.

The square root of 452139956 is about 21263.5828589634. The cubic root of 452139956 is about 767.5222293356.

The spelling of 452139956 in words is "four hundred fifty-two million, one hundred thirty-nine thousand, nine hundred fifty-six".