139057448 has 32 divisors (see below), whose sum is σ = 273369600. Its totient is φ = 66187968.

The previous prime is 139057441. The next prime is 139057469. The reversal of 139057448 is 844750931.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

Together with 134312152 it forms an amicable pair .

It is not an unprimeable number, because it can be changed into a prime (139057441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39338 + ... + 42726.

It is an arithmetic number, because the mean of its divisors is an integer number (8542800).

Almost surely, 2^139057448 is an apocalyptic number.

It is an amenable number.

139057448 is a deficient number, since it is larger than the sum of its proper divisors (134312152).

139057448 is a wasteful number, since it uses less digits than its factorization.

139057448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3641 (or 3637 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 139057448 is about 11792.2622087537. The cubic root of 139057448 is about 518.0815005705.

The spelling of 139057448 in words is "one hundred thirty-nine million, fifty-seven thousand, four hundred forty-eight".