139448733 has 24 divisors (see below), whose sum is σ = 202768800. Its totient is φ = 85006656.

The previous prime is 139448719. The next prime is 139448737. The reversal of 139448733 is 337844931.

It is not a de Polignac number, because 139448733 - 2⁶ = 139448669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139448737) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46483 + ... + 49391.

It is an arithmetic number, because the mean of its divisors is an integer number (8448700).

Almost surely, 2^139448733 is an apocalyptic number.

It is an amenable number.

139448733 is a deficient number, since it is larger than the sum of its proper divisors (63320067).

139448733 is a wasteful number, since it uses less digits than its factorization.

139448733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2989 (or 2960 counting only the distinct ones).

The product of its digits is 217728, while the sum is 42.

The square root of 139448733 is about 11808.8413064111. The cubic root of 139448733 is about 518.5669778116.

The spelling of 139448733 in words is "one hundred thirty-nine million, four hundred forty-eight thousand, seven hundred thirty-three".