249931227 has 24 divisors (see below), whose sum is σ = 412402944. Its totient is φ = 131829984.

The previous prime is 249931217. The next prime is 249931249. The reversal of 249931227 is 722139942.

It is not a de Polignac number, because 249931227 - 2⁴ = 249931211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (249931217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31663 + ... + 38760.

It is an arithmetic number, because the mean of its divisors is an integer number (17183456).

Almost surely, 2^249931227 is an apocalyptic number.

249931227 is a deficient number, since it is larger than the sum of its proper divisors (162471717).

249931227 is a wasteful number, since it uses less digits than its factorization.

249931227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70459 (or 70446 counting only the distinct ones).

The product of its digits is 54432, while the sum is 39.

The square root of 249931227 is about 15809.2133580390. The cubic root of 249931227 is about 629.9027539494.

The spelling of 249931227 in words is "two hundred forty-nine million, nine hundred thirty-one thousand, two hundred twenty-seven".