248961157 has 2 divisors, whose sum is σ = 248961158. Its totient is φ = 248961156.

The previous prime is 248961149. The next prime is 248961169. The reversal of 248961157 is 751169842.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 248188516 + 772641 = 15754^2 + 879^2 .

It is a cyclic number.

It is not a de Polignac number, because 248961157 - 2³ = 248961149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (248961137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124480578 + 124480579.

It is an arithmetic number, because the mean of its divisors is an integer number (124480579).

Almost surely, 2^248961157 is an apocalyptic number.

It is an amenable number.

248961157 is a deficient number, since it is larger than the sum of its proper divisors (1).

248961157 is an equidigital number, since it uses as much as digits as its factorization.

248961157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 43.

The square root of 248961157 is about 15778.5030025031. The cubic root of 248961157 is about 629.0867400850.

The spelling of 248961157 in words is "two hundred forty-eight million, nine hundred sixty-one thousand, one hundred fifty-seven".