139706974 has 16 divisors (see below), whose sum is σ = 230019840. Its totient is φ = 63111960.

The previous prime is 139706971. The next prime is 139707031. The reversal of 139706974 is 479607931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139706971) 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 7 ways as a sum of consecutive naturals, for example, 15894 + ... + 23065.

It is an arithmetic number, because the mean of its divisors is an integer number (14376240).

Almost surely, 2^139706974 is an apocalyptic number.

139706974 is a deficient number, since it is larger than the sum of its proper divisors (90312866).

139706974 is a wasteful number, since it uses less digits than its factorization.

139706974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39135.

The product of its (nonzero) digits is 285768, while the sum is 46.

The square root of 139706974 is about 11819.7704715447. The cubic root of 139706974 is about 518.8868867186.

The spelling of 139706974 in words is "one hundred thirty-nine million, seven hundred six thousand, nine hundred seventy-four".