139074920 has 16 divisors (see below), whose sum is σ = 312918660. Its totient is φ = 55629952.

The previous prime is 139074919. The next prime is 139074967. The reversal of 139074920 is 29470931.

It can be written as a sum of positive squares in 2 ways, for example, as 133033156 + 6041764 = 11534^2 + 2458^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1738397 + ... + 1738476.

Almost surely, 2^139074920 is an apocalyptic number.

139074920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139074920 is an abundant number, since it is smaller than the sum of its proper divisors (173843740).

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

139074920 is a wasteful number, since it uses less digits than its factorization.

139074920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3476884 (or 3476880 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 139074920 is about 11793.0030102599. The cubic root of 139074920 is about 518.1031979362.

The spelling of 139074920 in words is "one hundred thirty-nine million, seventy-four thousand, nine hundred twenty".