248955431 has 2 divisors, whose sum is σ = 248955432. Its totient is φ = 248955430.

The previous prime is 248955409. The next prime is 248955449. The reversal of 248955431 is 134559842.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 248955431 - 2⁶ = 248955367 is a prime.

It is a super-2 number, since 2×248955431² = 123957613248791522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (248955491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124477715 + 124477716.

It is an arithmetic number, because the mean of its divisors is an integer number (124477716).

Almost surely, 2^248955431 is an apocalyptic number.

248955431 is a deficient number, since it is larger than the sum of its proper divisors (1).

248955431 is an equidigital number, since it uses as much as digits as its factorization.

248955431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172800, while the sum is 41.

The square root of 248955431 is about 15778.3215520536. The cubic root of 248955431 is about 629.0819171394.

The spelling of 248955431 in words is "two hundred forty-eight million, nine hundred fifty-five thousand, four hundred thirty-one".