248624381 has 2 divisors, whose sum is σ = 248624382. Its totient is φ = 248624380.

The previous prime is 248624359. The next prime is 248624399. The reversal of 248624381 is 183426842.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149940025 + 98684356 = 12245^2 + 9934^2 .

It is a cyclic number.

It is not a de Polignac number, because 248624381 - 2⁶ = 248624317 is a prime.

It is a super-2 number, since 2×248624381² = 123628165655266322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (248627381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124312190 + 124312191.

It is an arithmetic number, because the mean of its divisors is an integer number (124312191).

Almost surely, 2^248624381 is an apocalyptic number.

It is an amenable number.

248624381 is a deficient number, since it is larger than the sum of its proper divisors (1).

248624381 is an equidigital number, since it uses as much as digits as its factorization.

248624381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 73728, while the sum is 38.

The square root of 248624381 is about 15767.8274026576. The cubic root of 248624381 is about 628.8029516145.

The spelling of 248624381 in words is "two hundred forty-eight million, six hundred twenty-four thousand, three hundred eighty-one".