124641772537 has 2 divisors, whose sum is σ = 124641772538. Its totient is φ = 124641772536.

The previous prime is 124641772501. The next prime is 124641772543. The reversal of 124641772537 is 735277146421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123858948096 + 782824441 = 351936^2 + 27979^2 .

It is a cyclic number.

It is not a de Polignac number, because 124641772537 - 2¹¹ = 124641770489 is a prime.

It is a super-2 number, since 2×124641772537² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (124641772597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62320886268 + 62320886269.

It is an arithmetic number, because the mean of its divisors is an integer number (62320886269).

Almost surely, 2^124641772537 is an apocalyptic number.

It is an amenable number.

124641772537 is a deficient number, since it is larger than the sum of its proper divisors (1).

124641772537 is an equidigital number, since it uses as much as digits as its factorization.

124641772537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1975680, while the sum is 49.

The spelling of 124641772537 in words is "one hundred twenty-four billion, six hundred forty-one million, seven hundred seventy-two thousand, five hundred thirty-seven".