139232648 has 16 divisors (see below), whose sum is σ = 261476880. Its totient is φ = 69505488.

The previous prime is 139232623. The next prime is 139232657. The reversal of 139232648 is 846232931.

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, 8390 + ... + 18677.

It is an arithmetic number, because the mean of its divisors is an integer number (16342305).

Almost surely, 2^139232648 is an apocalyptic number.

It is an amenable number.

139232648 is a deficient number, since it is larger than the sum of its proper divisors (122244232).

139232648 is a wasteful number, since it uses less digits than its factorization.

139232648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27716 (or 27712 counting only the distinct ones).

The product of its digits is 62208, while the sum is 38.

The square root of 139232648 is about 11799.6884704640. The cubic root of 139232648 is about 518.2989881079.

The spelling of 139232648 in words is "one hundred thirty-nine million, two hundred thirty-two thousand, six hundred forty-eight".