248294257 has 2 divisors, whose sum is σ = 248294258. Its totient is φ = 248294256.

The previous prime is 248294239. The next prime is 248294273. The reversal of 248294257 is 752492842.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 241989136 + 6305121 = 15556^2 + 2511^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248294257 is a prime.

It is not a weakly prime, because it can be changed into another prime (248294227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124147128 + 124147129.

It is an arithmetic number, because the mean of its divisors is an integer number (124147129).

Almost surely, 2^248294257 is an apocalyptic number.

It is an amenable number.

248294257 is a deficient number, since it is larger than the sum of its proper divisors (1).

248294257 is an equidigital number, since it uses as much as digits as its factorization.

248294257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 322560, while the sum is 43.

The square root of 248294257 is about 15757.3556474429. The cubic root of 248294257 is about 628.5245196965.

The spelling of 248294257 in words is "two hundred forty-eight million, two hundred ninety-four thousand, two hundred fifty-seven".