248431 has 2 divisors, whose sum is σ = 248432. Its totient is φ = 248430.

The previous prime is 248407. The next prime is 248441. The reversal of 248431 is 134842.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248431 is a prime.

It is a super-2 number, since 2×248431² = 123435923522, 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 (248401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124215 + 124216.

It is an arithmetic number, because the mean of its divisors is an integer number (124216).

2²⁴⁸⁴³¹ is an apocalyptic number.

248431 is a deficient number, since it is larger than the sum of its proper divisors (1).

248431 is an equidigital number, since it uses as much as digits as its factorization.

248431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 768, while the sum is 22.

The square root of 248431 is about 498.4285304836. The cubic root of 248431 is about 62.8639880877.

The spelling of 248431 in words is "two hundred forty-eight thousand, four hundred thirty-one".