239220137 has 16 divisors (see below), whose sum is σ = 266999040. Its totient is φ = 212913792.

The previous prime is 239220097. The next prime is 239220151. The reversal of 239220137 is 731022932.

It is not a de Polignac number, because 239220137 - 2⁸ = 239219881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (239220187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41453 + ... + 46869.

It is an arithmetic number, because the mean of its divisors is an integer number (16687440).

Almost surely, 2^239220137 is an apocalyptic number.

It is an amenable number.

239220137 is a deficient number, since it is larger than the sum of its proper divisors (27778903).

239220137 is a wasteful number, since it uses less digits than its factorization.

239220137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5552.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 239220137 is about 15466.7429344384. The cubic root of 239220137 is about 620.7726553292.

The spelling of 239220137 in words is "two hundred thirty-nine million, two hundred twenty thousand, one hundred thirty-seven".