139970136 has 32 divisors (see below), whose sum is σ = 357373440. Its totient is φ = 45663648.

The previous prime is 139970123. The next prime is 139970161. The reversal of 139970136 is 631079931.

It is a junction number, because it is equal to n+sod(n) for n = 139970094 and 139970103.

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, 60916 + ... + 63171.

It is an arithmetic number, because the mean of its divisors is an integer number (11167920).

Almost surely, 2^139970136 is an apocalyptic number.

It is an amenable number.

139970136 is an abundant number, since it is smaller than the sum of its proper divisors (217403304).

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

139970136 is a wasteful number, since it uses less digits than its factorization.

139970136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124143 (or 124139 counting only the distinct ones).

The product of its (nonzero) digits is 30618, while the sum is 39.

The square root of 139970136 is about 11830.8975145591. The cubic root of 139970136 is about 519.2124864539.

The spelling of 139970136 in words is "one hundred thirty-nine million, nine hundred seventy thousand, one hundred thirty-six".