139130816 has 56 divisors (see below), whose sum is σ = 304166016. Its totient is φ = 62616320.

The previous prime is 139130807. The next prime is 139130837. The reversal of 139130816 is 618031931.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74405 + ... + 76251.

It is an arithmetic number, because the mean of its divisors is an integer number (5431536).

Almost surely, 2^139130816 is an apocalyptic number.

139130816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139130816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152083008).

139130816 is an abundant number, since it is smaller than the sum of its proper divisors (165035200).

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

139130816 is a wasteful number, since it uses less digits than its factorization.

139130816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977 (or 1967 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 139130816 is about 11795.3726520191. The cubic root of 139130816 is about 518.1725994200.

The spelling of 139130816 in words is "one hundred thirty-nine million, one hundred thirty thousand, eight hundred sixteen".