139040004 has 24 divisors (see below), whose sum is σ = 325459008. Its totient is φ = 46199200.

The previous prime is 139039987. The next prime is 139040029. The reversal of 139040004 is 400040931.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14472 + ... + 22079.

It is an arithmetic number, because the mean of its divisors is an integer number (13560792).

Almost surely, 2^139040004 is an apocalyptic number.

It is an amenable number.

139040004 is an abundant number, since it is smaller than the sum of its proper divisors (186419004).

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

139040004 is a wasteful number, since it uses less digits than its factorization.

139040004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36875 (or 36873 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 139040004 is about 11791.5225480003. The cubic root of 139040004 is about 518.0598361631.

Adding to 139040004 its reverse (400040931), we get a palindrome (539080935).

The spelling of 139040004 in words is "one hundred thirty-nine million, forty thousand, four".