238251 has 16 divisors (see below), whose sum is σ = 352800. Its totient is φ = 142080.

The previous prime is 238247. The next prime is 238261. The reversal of 238251 is 152832.

It is not a de Polignac number, because 238251 - 2² = 238247 is a prime.

238251 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (238201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1525 + ... + 1673.

It is an arithmetic number, because the mean of its divisors is an integer number (22050).

2²³⁸²⁵¹ is an apocalyptic number.

238251 is a deficient number, since it is larger than the sum of its proper divisors (114549).

238251 is a wasteful number, since it uses less digits than its factorization.

238251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206.

The product of its digits is 480, while the sum is 21.

The square root of 238251 is about 488.1096188358. The cubic root of 238251 is about 61.9933222083.

The spelling of 238251 in words is "two hundred thirty-eight thousand, two hundred fifty-one".