248974731 has 12 divisors (see below), whose sum is σ = 361619440. Its totient is φ = 165065040.

The previous prime is 248974729. The next prime is 248974751. The reversal of 248974731 is 137479842.

It is not a de Polignac number, because 248974731 - 2¹ = 248974729 is a prime.

It is a super-2 number, since 2×248974731² = 123976833353044722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248974721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74791 + ... + 78048.

Almost surely, 2^248974731 is an apocalyptic number.

248974731 is a deficient number, since it is larger than the sum of its proper divisors (112644709).

248974731 is a wasteful number, since it uses less digits than its factorization.

248974731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153026 (or 153023 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 248974731 is about 15778.9331388405. The cubic root of 248974731 is about 629.0981730173.

The spelling of 248974731 in words is "two hundred forty-eight million, nine hundred seventy-four thousand, seven hundred thirty-one".