139391116 has 12 divisors (see below), whose sum is σ = 244193488. Its totient is φ = 69621552.

The previous prime is 139391111. The next prime is 139391123. The reversal of 139391116 is 611193931.

It is not an unprimeable number, because it can be changed into a prime (139391111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14151 + ... + 21886.

Almost surely, 2^139391116 is an apocalyptic number.

It is an amenable number.

139391116 is a deficient number, since it is larger than the sum of its proper divisors (104802372).

139391116 is a wasteful number, since it uses less digits than its factorization.

139391116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37008 (or 37006 counting only the distinct ones).

The product of its digits is 4374, while the sum is 34.

The square root of 139391116 is about 11806.4014839408. The cubic root of 139391116 is about 518.4955480016.

The spelling of 139391116 in words is "one hundred thirty-nine million, three hundred ninety-one thousand, one hundred sixteen".