139788924 has 24 divisors (see below), whose sum is σ = 355826688. Its totient is φ = 42360240.

The previous prime is 139788911. The next prime is 139788937. The reversal of 139788924 is 429887931.

It is an interprime number because it is at equal distance from previous prime (139788911) and next prime (139788937).

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 7 ways as a sum of consecutive naturals, for example, 529372 + ... + 529635.

It is an arithmetic number, because the mean of its divisors is an integer number (14826112).

Almost surely, 2^139788924 is an apocalyptic number.

It is an amenable number.

139788924 is an abundant number, since it is smaller than the sum of its proper divisors (216037764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139788924 is a wasteful number, since it uses less digits than its factorization.

139788924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059025 (or 1059023 counting only the distinct ones).

The product of its digits is 870912, while the sum is 51.

The square root of 139788924 is about 11823.2366127047. The cubic root of 139788924 is about 518.9883239565.

The spelling of 139788924 in words is "one hundred thirty-nine million, seven hundred eighty-eight thousand, nine hundred twenty-four".