124945157 has 2 divisors, whose sum is σ = 124945158. Its totient is φ = 124945156.

The previous prime is 124945147. The next prime is 124945187. The reversal of 124945157 is 751549421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75186241 + 49758916 = 8671^2 + 7054^2 .

It is a cyclic number.

It is not a de Polignac number, because 124945157 - 2¹⁶ = 124879621 is a prime.

It is a super-2 number, since 2×124945157² = 31222584515509298, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 124945157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124945147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62472578 + 62472579.

It is an arithmetic number, because the mean of its divisors is an integer number (62472579).

Almost surely, 2^124945157 is an apocalyptic number.

It is an amenable number.

124945157 is a deficient number, since it is larger than the sum of its proper divisors (1).

124945157 is an equidigital number, since it uses as much as digits as its factorization.

124945157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 38.

The square root of 124945157 is about 11177.8869648964. The cubic root of 124945157 is about 499.9268653032.

The spelling of 124945157 in words is "one hundred twenty-four million, nine hundred forty-five thousand, one hundred fifty-seven".