139345916 has 6 divisors (see below), whose sum is σ = 243855360. Its totient is φ = 69672956.

The previous prime is 139345901. The next prime is 139345939. The reversal of 139345916 is 619543931.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17418236 + ... + 17418243.

It is an arithmetic number, because the mean of its divisors is an integer number (40642560).

Almost surely, 2^139345916 is an apocalyptic number.

It is an amenable number.

139345916 is a deficient number, since it is larger than the sum of its proper divisors (104509444).

139345916 is a wasteful number, since it uses less digits than its factorization.

139345916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34836483 (or 34836481 counting only the distinct ones).

The product of its digits is 87480, while the sum is 41.

The square root of 139345916 is about 11804.4871129584. The cubic root of 139345916 is about 518.4394982018.

The spelling of 139345916 in words is "one hundred thirty-nine million, three hundred forty-five thousand, nine hundred sixteen".