248922831 has 4 divisors (see below), whose sum is σ = 331897112. Its totient is φ = 165948552.

The previous prime is 248922811. The next prime is 248922853. The reversal of 248922831 is 138229842.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 248922831 - 2⁷ = 248922703 is a prime.

It is a super-2 number, since 2×248922831² = 123925151586109122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 248922831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248922811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41487136 + ... + 41487141.

It is an arithmetic number, because the mean of its divisors is an integer number (82974278).

Almost surely, 2^248922831 is an apocalyptic number.

248922831 is a deficient number, since it is larger than the sum of its proper divisors (82974281).

248922831 is an equidigital number, since it uses as much as digits as its factorization.

248922831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82974280.

The product of its digits is 55296, while the sum is 39.

The square root of 248922831 is about 15777.2884552448. The cubic root of 248922831 is about 629.0544571163.

The spelling of 248922831 in words is "two hundred forty-eight million, nine hundred twenty-two thousand, eight hundred thirty-one".