139646324 has 12 divisors (see below), whose sum is σ = 248387748. Its totient is φ = 68678400.

The previous prime is 139646237. The next prime is 139646329. The reversal of 139646324 is 423646931.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 50154724 + 89491600 = 7082^2 + 9460^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139646329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285917 + ... + 286404.

It is an arithmetic number, because the mean of its divisors is an integer number (20698979).

Almost surely, 2^139646324 is an apocalyptic number.

It is an amenable number.

139646324 is a deficient number, since it is larger than the sum of its proper divisors (108741424).

139646324 is a wasteful number, since it uses less digits than its factorization.

139646324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572386 (or 572384 counting only the distinct ones).

The product of its digits is 93312, while the sum is 38.

The square root of 139646324 is about 11817.2045763793. The cubic root of 139646324 is about 518.8117889529.

The spelling of 139646324 in words is "one hundred thirty-nine million, six hundred forty-six thousand, three hundred twenty-four".