139930654628 has 12 divisors (see below), whose sum is σ = 244899073692. Its totient is φ = 69959490720.

The previous prime is 139930654613. The next prime is 139930654639. The reversal of 139930654628 is 826456039931.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5968798564 + 133961856064 = 77258^2 + 366008^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1404983 + ... + 1501278.

It is an arithmetic number, because the mean of its divisors is an integer number (20408256141).

Almost surely, 2^139930654628 is an apocalyptic number.

It is an amenable number.

139930654628 is a deficient number, since it is larger than the sum of its proper divisors (104968419064).

139930654628 is a wasteful number, since it uses less digits than its factorization.

139930654628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2918302 (or 2918300 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 56.

The spelling of 139930654628 in words is "one hundred thirty-nine billion, nine hundred thirty million, six hundred fifty-four thousand, six hundred twenty-eight".