248816831 has 2 divisors, whose sum is σ = 248816832. Its totient is φ = 248816830.

The previous prime is 248816809. The next prime is 248816929. The reversal of 248816831 is 138618842.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248816831 is a prime.

It is a super-2 number, since 2×248816831² = 123819630777765122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (248816801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124408415 + 124408416.

It is an arithmetic number, because the mean of its divisors is an integer number (124408416).

Almost surely, 2^248816831 is an apocalyptic number.

248816831 is a deficient number, since it is larger than the sum of its proper divisors (1).

248816831 is an equidigital number, since it uses as much as digits as its factorization.

248816831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73728, while the sum is 41.

The square root of 248816831 is about 15773.9288384346. The cubic root of 248816831 is about 628.9651533492.

The spelling of 248816831 in words is "two hundred forty-eight million, eight hundred sixteen thousand, eight hundred thirty-one".