248134657 has 2 divisors, whose sum is σ = 248134658. Its totient is φ = 248134656.

The previous prime is 248134631. The next prime is 248134673. The reversal of 248134657 is 756431842.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 247873536 + 261121 = 15744^2 + 511^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248134657 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (248134687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124067328 + 124067329.

It is an arithmetic number, because the mean of its divisors is an integer number (124067329).

Almost surely, 2^248134657 is an apocalyptic number.

It is an amenable number.

248134657 is a deficient number, since it is larger than the sum of its proper divisors (1).

248134657 is an equidigital number, since it uses as much as digits as its factorization.

248134657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 40.

The square root of 248134657 is about 15752.2905318560. The cubic root of 248134657 is about 628.3898219721.

The spelling of 248134657 in words is "two hundred forty-eight million, one hundred thirty-four thousand, six hundred fifty-seven".