139179950 has 96 divisors (see below), whose sum is σ = 322271040. Its totient is φ = 43804800.

The previous prime is 139179917. The next prime is 139179973. The reversal of 139179950 is 59971931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 768860 + ... + 769040.

It is an arithmetic number, because the mean of its divisors is an integer number (3356990).

Almost surely, 2^139179950 is an apocalyptic number.

139179950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139179950 is an abundant number, since it is smaller than the sum of its proper divisors (183091090).

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

139179950 is a wasteful number, since it uses less digits than its factorization.

139179950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 76545, while the sum is 44.

The square root of 139179950 is about 11797.4552340748. The cubic root of 139179950 is about 518.2335897330.

The spelling of 139179950 in words is "one hundred thirty-nine million, one hundred seventy-nine thousand, nine hundred fifty".