124797157 has 2 divisors, whose sum is σ = 124797158. Its totient is φ = 124797156.

The previous prime is 124797143. The next prime is 124797163. The reversal of 124797157 is 751797421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99082116 + 25715041 = 9954^2 + 5071^2 .

It is a cyclic number.

It is not a de Polignac number, because 124797157 - 2¹⁵ = 124764389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124797107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62398578 + 62398579.

It is an arithmetic number, because the mean of its divisors is an integer number (62398579).

Almost surely, 2^124797157 is an apocalyptic number.

It is an amenable number.

124797157 is a deficient number, since it is larger than the sum of its proper divisors (1).

124797157 is an equidigital number, since it uses as much as digits as its factorization.

124797157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 123480, while the sum is 43.

The square root of 124797157 is about 11171.2647896288. The cubic root of 124797157 is about 499.7293962403.

The spelling of 124797157 in words is "one hundred twenty-four million, seven hundred ninety-seven thousand, one hundred fifty-seven".