139740512 has 24 divisors (see below), whose sum is σ = 277791696. Its totient is φ = 69190272.

The previous prime is 139740509. The next prime is 139740521. The reversal of 139740512 is 215047931.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17903 + ... + 24494.

It is an arithmetic number, because the mean of its divisors is an integer number (11574654).

Almost surely, 2^139740512 is an apocalyptic number.

It is an amenable number.

139740512 is a deficient number, since it is larger than the sum of its proper divisors (138051184).

139740512 is a wasteful number, since it uses less digits than its factorization.

139740512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42510 (or 42502 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 139740512 is about 11821.1891110835. The cubic root of 139740512 is about 518.9284046556.

The spelling of 139740512 in words is "one hundred thirty-nine million, seven hundred forty thousand, five hundred twelve".