249900231 has 16 divisors (see below), whose sum is σ = 381024000. Its totient is φ = 142716288.

The previous prime is 249900229. The next prime is 249900251. The reversal of 249900231 is 132009942.

It is not a de Polignac number, because 249900231 - 2¹ = 249900229 is a prime.

It is a super-2 number, since 2×249900231² = 124900250907706722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249900251) 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, 59695 + ... + 63743.

It is an arithmetic number, because the mean of its divisors is an integer number (23814000).

Almost surely, 2^249900231 is an apocalyptic number.

249900231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

249900231 is a deficient number, since it is larger than the sum of its proper divisors (131123769).

249900231 is a wasteful number, since it uses less digits than its factorization.

249900231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6998.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 249900231 is about 15808.2330132118. The cubic root of 249900231 is about 629.8767130885.

The spelling of 249900231 in words is "two hundred forty-nine million, nine hundred thousand, two hundred thirty-one".