139947164 has 12 divisors (see below), whose sum is σ = 279894384. Its totient is φ = 59977344.

The previous prime is 139947163. The next prime is 139947173. The reversal of 139947164 is 461749931.

139947164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

139947164 is an admirable number.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139947161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2499029 + ... + 2499084.

It is an arithmetic number, because the mean of its divisors is an integer number (23324532).

Almost surely, 2^139947164 is an apocalyptic number.

139947164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

139947164 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

139947164 is a wasteful number, since it uses less digits than its factorization.

139947164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4998124 (or 4998122 counting only the distinct ones).

The product of its digits is 163296, while the sum is 44.

The square root of 139947164 is about 11829.9266269914. The cubic root of 139947164 is about 519.1840803901.

The spelling of 139947164 in words is "one hundred thirty-nine million, nine hundred forty-seven thousand, one hundred sixty-four".