124680557 has 2 divisors, whose sum is σ = 124680558. Its totient is φ = 124680556.

The previous prime is 124680553. The next prime is 124680587. The reversal of 124680557 is 755086421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112805641 + 11874916 = 10621^2 + 3446^2 .

It is a cyclic number.

It is not a de Polignac number, because 124680557 - 2² = 124680553 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 124680557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124680553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62340278 + 62340279.

It is an arithmetic number, because the mean of its divisors is an integer number (62340279).

Almost surely, 2^124680557 is an apocalyptic number.

It is an amenable number.

124680557 is a deficient number, since it is larger than the sum of its proper divisors (1).

124680557 is an equidigital number, since it uses as much as digits as its factorization.

124680557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 124680557 is about 11166.0448234816. The cubic root of 124680557 is about 499.5737126615.

The spelling of 124680557 in words is "one hundred twenty-four million, six hundred eighty thousand, five hundred fifty-seven".