90751125317 has 2 divisors, whose sum is σ = 90751125318. Its totient is φ = 90751125316.

The previous prime is 90751125287. The next prime is 90751125331. The reversal of 90751125317 is 71352115709.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76733986081 + 14017139236 = 277009^2 + 118394^2 .

It is a cyclic number.

It is not a de Polignac number, because 90751125317 - 2⁶ = 90751125253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90751125397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45375562658 + 45375562659.

It is an arithmetic number, because the mean of its divisors is an integer number (45375562659).

Almost surely, 2^90751125317 is an apocalyptic number.

It is an amenable number.

90751125317 is a deficient number, since it is larger than the sum of its proper divisors (1).

90751125317 is an equidigital number, since it uses as much as digits as its factorization.

90751125317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 66150, while the sum is 41.

The spelling of 90751125317 in words is "ninety billion, seven hundred fifty-one million, one hundred twenty-five thousand, three hundred seventeen".