139275238 has 8 divisors (see below), whose sum is σ = 209029680. Its totient is φ = 69598680.

The previous prime is 139275229. The next prime is 139275293. The reversal of 139275238 is 832572931.

139275238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 139275238.

It is a congruent number.

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, 14773 + ... + 22288.

It is an arithmetic number, because the mean of its divisors is an integer number (26128710).

Almost surely, 2^139275238 is an apocalyptic number.

139275238 is a deficient number, since it is larger than the sum of its proper divisors (69754442).

139275238 is a wasteful number, since it uses less digits than its factorization.

139275238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38942.

The product of its digits is 90720, while the sum is 40.

The square root of 139275238 is about 11801.4930411368. The cubic root of 139275238 is about 518.3518303682.

The spelling of 139275238 in words is "one hundred thirty-nine million, two hundred seventy-five thousand, two hundred thirty-eight".