139315992 has 32 divisors (see below), whose sum is σ = 354196800. Its totient is φ = 45651104.

The previous prime is 139315949. The next prime is 139315997. The reversal of 139315992 is 299513931.

139315992 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139315997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47778 + ... + 50609.

It is an arithmetic number, because the mean of its divisors is an integer number (11068650).

Almost surely, 2^139315992 is an apocalyptic number.

139315992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

139315992 is an abundant number, since it is smaller than the sum of its proper divisors (214880808).

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

139315992 is a wasteful number, since it uses less digits than its factorization.

139315992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98455 (or 98451 counting only the distinct ones).

The product of its digits is 65610, while the sum is 42.

The square root of 139315992 is about 11803.2195607809. The cubic root of 139315992 is about 518.4023845817.

The spelling of 139315992 in words is "one hundred thirty-nine million, three hundred fifteen thousand, nine hundred ninety-two".