139435136 has 32 divisors (see below), whose sum is σ = 278521200. Its totient is φ = 69531904.

The previous prime is 139435099. The next prime is 139435169. The reversal of 139435136 is 631534931.

It is a tau number, because it is divible by the number of its divisors (32).

139435136 is a Rhonda number in base 10.

Its product of digits (29160) is a multiple of the sum of its prime factors (2916).

It is a junction number, because it is equal to n+sod(n) for n = 139435096 and 139435105.

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, 55475 + ... + 57933.

Almost surely, 2^139435136 is an apocalyptic number.

139435136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

139435136 is a deficient number, since it is larger than the sum of its proper divisors (139086064).

139435136 is an equidigital number, since it uses as much as digits as its factorization.

139435136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2916 (or 2904 counting only the distinct ones).

The product of its digits is 29160, while the sum is 35.

The square root of 139435136 is about 11808.2655796692. The cubic root of 139435136 is about 518.5501229091.

The spelling of 139435136 in words is "one hundred thirty-nine million, four hundred thirty-five thousand, one hundred thirty-six".