139004648 has 32 divisors (see below), whose sum is σ = 278526600. Its totient is φ = 64806912.

The previous prime is 139004647. The next prime is 139004653. The reversal of 139004648 is 846400931.

It can be written as a sum of positive squares in 4 ways, for example, as 121044004 + 17960644 = 11002^2 + 4238^2 .

It is not an unprimeable number, because it can be changed into a prime (139004647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10136 + ... + 19512.

Almost surely, 2^139004648 is an apocalyptic number.

It is an amenable number.

139004648 is an abundant number, since it is smaller than the sum of its proper divisors (139521952).

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

139004648 is a wasteful number, since it uses less digits than its factorization.

139004648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9509 (or 9505 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 139004648 is about 11790.0232400110. The cubic root of 139004648 is about 518.0159205614.

The spelling of 139004648 in words is "one hundred thirty-nine million, four thousand, six hundred forty-eight".