239838137 has 8 divisors (see below), whose sum is σ = 299019072. Its totient is φ = 186886800.

The previous prime is 239838113. The next prime is 239838143. The reversal of 239838137 is 731838932.

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

It is a cyclic number.

It is not a de Polignac number, because 239838137 - 2¹⁸ = 239575993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (239838187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1557314 + ... + 1557467.

It is an arithmetic number, because the mean of its divisors is an integer number (37377384).

Almost surely, 2^239838137 is an apocalyptic number.

It is an amenable number.

239838137 is a deficient number, since it is larger than the sum of its proper divisors (59180935).

239838137 is a wasteful number, since it uses less digits than its factorization.

239838137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3114799.

The product of its digits is 217728, while the sum is 44.

The square root of 239838137 is about 15486.7083978488. The cubic root of 239838137 is about 621.3067625561.

The spelling of 239838137 in words is "two hundred thirty-nine million, eight hundred thirty-eight thousand, one hundred thirty-seven".