139412136 has 32 divisors (see below), whose sum is σ = 357033600. Its totient is φ = 45336960.

The previous prime is 139412129. The next prime is 139412137. The reversal of 139412136 is 631214931.

It is not an unprimeable number, because it can be changed into a prime (139412137) 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 7 ways as a sum of consecutive naturals, for example, 69856 + ... + 71823.

It is an arithmetic number, because the mean of its divisors is an integer number (11157300).

Almost surely, 2^139412136 is an apocalyptic number.

It is an amenable number.

139412136 is an abundant number, since it is smaller than the sum of its proper divisors (217621464).

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

139412136 is a wasteful number, since it uses less digits than its factorization.

139412136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141729 (or 141725 counting only the distinct ones).

The product of its digits is 3888, while the sum is 30.

The square root of 139412136 is about 11807.2916454198. The cubic root of 139412136 is about 518.5216095109.

It can be divided in two parts, 1394 and 12136, that added together give a triangular number (13530 = T₁₆₄).

The spelling of 139412136 in words is "one hundred thirty-nine million, four hundred twelve thousand, one hundred thirty-six".