317012551 has 2 divisors, whose sum is σ = 317012552. Its totient is φ = 317012550.

The previous prime is 317012489. The next prime is 317012569. The reversal of 317012551 is 155210713.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-317012551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317012581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158506275 + 158506276.

It is an arithmetic number, because the mean of its divisors is an integer number (158506276).

Almost surely, 2^317012551 is an apocalyptic number.

317012551 is a deficient number, since it is larger than the sum of its proper divisors (1).

317012551 is an equidigital number, since it uses as much as digits as its factorization.

317012551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 317012551 is about 17804.8462784715. The cubic root of 317012551 is about 681.8551928090.

The spelling of 317012551 in words is "three hundred seventeen million, twelve thousand, five hundred fifty-one".