139118860 has 12 divisors (see below), whose sum is σ = 292149648. Its totient is φ = 55647536.

The previous prime is 139118843. The next prime is 139118869. The reversal of 139118860 is 68811931.

It is not an unprimeable number, because it can be changed into a prime (139118869) 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, 3477952 + ... + 3477991.

It is an arithmetic number, because the mean of its divisors is an integer number (24345804).

Almost surely, 2^139118860 is an apocalyptic number.

139118860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139118860 is an abundant number, since it is smaller than the sum of its proper divisors (153030788).

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

139118860 is a wasteful number, since it uses less digits than its factorization.

139118860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6955952 (or 6955950 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 139118860 is about 11794.8658322170. The cubic root of 139118860 is about 518.1577561973.

The spelling of 139118860 in words is "one hundred thirty-nine million, one hundred eighteen thousand, eight hundred sixty".