139831324 has 12 divisors (see below), whose sum is σ = 259099344. Its totient is φ = 65802944.

The previous prime is 139831309. The next prime is 139831339. The reversal of 139831324 is 423138931.

It is an interprime number because it is at equal distance from previous prime (139831309) and next prime (139831339).

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 139831324.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1028104 + ... + 1028239.

It is an arithmetic number, because the mean of its divisors is an integer number (21591612).

Almost surely, 2^139831324 is an apocalyptic number.

It is an amenable number.

139831324 is a deficient number, since it is larger than the sum of its proper divisors (119268020).

139831324 is a wasteful number, since it uses less digits than its factorization.

139831324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2056364 (or 2056362 counting only the distinct ones).

The product of its digits is 15552, while the sum is 34.

The square root of 139831324 is about 11825.0295559884. The cubic root of 139831324 is about 519.0407908708.

The spelling of 139831324 in words is "one hundred thirty-nine million, eight hundred thirty-one thousand, three hundred twenty-four".