139090608 has 50 divisors (see below), whose sum is σ = 402572324. Its totient is φ = 46363104.

The previous prime is 139090607. The next prime is 139090631. The reversal of 139090608 is 806090931.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (139090607) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 52366 + ... + 54957.

Almost surely, 2^139090608 is an apocalyptic number.

139090608 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

139090608 is an abundant number, since it is smaller than the sum of its proper divisors (263481716).

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

139090608 is a wasteful number, since it uses less digits than its factorization.

139090608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107343 (or 107328 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 139090608 is about 11793.6681316713. The cubic root of 139090608 is about 518.1226783174.

The spelling of 139090608 in words is "one hundred thirty-nine million, ninety thousand, six hundred eight".