124290917 has 2 divisors, whose sum is σ = 124290918. Its totient is φ = 124290916.

The previous prime is 124290871. The next prime is 124290949. The reversal of 124290917 is 719092421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104878081 + 19412836 = 10241^2 + 4406^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124290917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124290017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62145458 + 62145459.

It is an arithmetic number, because the mean of its divisors is an integer number (62145459).

Almost surely, 2^124290917 is an apocalyptic number.

It is an amenable number.

124290917 is a deficient number, since it is larger than the sum of its proper divisors (1).

124290917 is an equidigital number, since it uses as much as digits as its factorization.

124290917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 124290917 is about 11148.5836320135. The cubic root of 124290917 is about 499.0527626159.

The spelling of 124290917 in words is "one hundred twenty-four million, two hundred ninety thousand, nine hundred seventeen".