238603139 has 6 divisors (see below), whose sum is σ = 242767980. Its totient is φ = 234442380.

The previous prime is 238603133. The next prime is 238603151. The reversal of 238603139 is 931306832.

238603139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 238603139 - 2²⁰ = 237554563 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 238603099 and 238603108.

It is not an unprimeable number, because it can be changed into a prime (238603133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117644 + ... + 119654.

It is an arithmetic number, because the mean of its divisors is an integer number (40461330).

Almost surely, 2^238603139 is an apocalyptic number.

238603139 is a deficient number, since it is larger than the sum of its proper divisors (4164841).

238603139 is an frugal number, since it uses more digits than its factorization.

238603139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4081 (or 2070 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 238603139 is about 15446.7840989638. The cubic root of 238603139 is about 620.2384956550.

The spelling of 238603139 in words is "two hundred thirty-eight million, six hundred three thousand, one hundred thirty-nine".