139732945 has 48 divisors (see below), whose sum is σ = 198936000. Its totient is φ = 93393920.

The previous prime is 139732939. The next prime is 139732951. The reversal of 139732945 is 549237931.

It is an interprime number because it is at equal distance from previous prime (139732939) and next prime (139732951).

It is not a de Polignac number, because 139732945 - 2¹¹ = 139730897 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 937731 + ... + 937879.

It is an arithmetic number, because the mean of its divisors is an integer number (4144500).

Almost surely, 2^139732945 is an apocalyptic number.

It is an amenable number.

139732945 is a deficient number, since it is larger than the sum of its proper divisors (59203055).

139732945 is a wasteful number, since it uses less digits than its factorization.

139732945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 241 counting only the distinct ones).

The product of its digits is 204120, while the sum is 43.

The square root of 139732945 is about 11820.8690458866. The cubic root of 139732945 is about 518.9190377654.

The spelling of 139732945 in words is "one hundred thirty-nine million, seven hundred thirty-two thousand, nine hundred forty-five".