139004564 has 6 divisors (see below), whose sum is σ = 243257994. Its totient is φ = 69502280.

The previous prime is 139004519. The next prime is 139004573. The reversal of 139004564 is 465400931.

It can be written as a sum of positive squares in only one way, i.e., 74684164 + 64320400 = 8642^2 + 8020^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 139004564.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17375567 + ... + 17375574.

It is an arithmetic number, because the mean of its divisors is an integer number (40542999).

Almost surely, 2^139004564 is an apocalyptic number.

It is an amenable number.

139004564 is a deficient number, since it is larger than the sum of its proper divisors (104253430).

139004564 is a wasteful number, since it uses less digits than its factorization.

139004564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34751145 (or 34751143 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 139004564 is about 11790.0196776765. The cubic root of 139004564 is about 518.0158162163.

The spelling of 139004564 in words is "one hundred thirty-nine million, four thousand, five hundred sixty-four".