124147072657 has 4 divisors (see below), whose sum is σ = 124427314800. Its totient is φ = 123866830516.

The previous prime is 124147072639. The next prime is 124147072667. The reversal of 124147072657 is 756270741421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 756270741421 = 13 ⋅58174672417.

It is a cyclic number.

It is not a de Polignac number, because 124147072657 - 2⁷ = 124147072529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124147072667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140120407 + ... + 140121292.

It is an arithmetic number, because the mean of its divisors is an integer number (31106828700).

Almost surely, 2^124147072657 is an apocalyptic number.

It is an amenable number.

124147072657 is a deficient number, since it is larger than the sum of its proper divisors (280242143).

124147072657 is an equidigital number, since it uses as much as digits as its factorization.

124147072657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280242142.

The product of its (nonzero) digits is 658560, while the sum is 46.

The spelling of 124147072657 in words is "one hundred twenty-four billion, one hundred forty-seven million, seventy-two thousand, six hundred fifty-seven".