139090964 has 6 divisors (see below), whose sum is σ = 243409194. Its totient is φ = 69545480.

The previous prime is 139090961. The next prime is 139090967. The reversal of 139090964 is 469090931.

139090964 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (139090961) and next prime (139090967).

It can be written as a sum of positive squares in only one way, i.e., 70896400 + 68194564 = 8420^2 + 8258^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139090961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17386367 + ... + 17386374.

It is an arithmetic number, because the mean of its divisors is an integer number (40568199).

Almost surely, 2^139090964 is an apocalyptic number.

It is an amenable number.

139090964 is a deficient number, since it is larger than the sum of its proper divisors (104318230).

139090964 is a wasteful number, since it uses less digits than its factorization.

139090964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34772745 (or 34772743 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 139090964 is about 11793.6832245062. The cubic root of 139090964 is about 518.1231203590.

The spelling of 139090964 in words is "one hundred thirty-nine million, ninety thousand, nine hundred sixty-four".