124999117 has 2 divisors, whose sum is σ = 124999118. Its totient is φ = 124999116.

The previous prime is 124999087. The next prime is 124999163. The reversal of 124999117 is 711999421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119377476 + 5621641 = 10926^2 + 2371^2 .

It is a cyclic number.

It is not a de Polignac number, because 124999117 - 2²³ = 116610509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124999177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62499558 + 62499559.

It is an arithmetic number, because the mean of its divisors is an integer number (62499559).

Almost surely, 2^124999117 is an apocalyptic number.

It is an amenable number.

124999117 is a deficient number, since it is larger than the sum of its proper divisors (1).

124999117 is an equidigital number, since it uses as much as digits as its factorization.

124999117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 43.

The square root of 124999117 is about 11180.3003984687. The cubic root of 124999117 is about 499.9988226639.

The spelling of 124999117 in words is "one hundred twenty-four million, nine hundred ninety-nine thousand, one hundred seventeen".