139164516 has 36 divisors (see below), whose sum is σ = 372471372. Its totient is φ = 43659264.

The previous prime is 139164503. The next prime is 139164517. The reversal of 139164516 is 615461931.

139164516 is a `hidden beast` number, since 1 + 3 + 9 + 1 + 645 + 1 + 6 = 666.

139164516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 53231616 + 85932900 = 7296^2 + 9270^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (139164517) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113085 + ... + 114308.

It is an arithmetic number, because the mean of its divisors is an integer number (10346427).

Almost surely, 2^139164516 is an apocalyptic number.

It is an amenable number.

139164516 is an abundant number, since it is smaller than the sum of its proper divisors (233306856).

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

139164516 is a wasteful number, since it uses less digits than its factorization.

139164516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227420 (or 227415 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 139164516 is about 11796.8010918215. The cubic root of 139164516 is about 518.2144329677.

The spelling of 139164516 in words is "one hundred thirty-nine million, one hundred sixty-four thousand, five hundred sixteen".