317192045 has 4 divisors (see below), whose sum is σ = 380630460. Its totient is φ = 253753632.

The previous prime is 317192041. The next prime is 317192059. The reversal of 317192045 is 540291713.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 227738281 + 89453764 = 15091^2 + 9458^2 .

It is a cyclic number.

It is not a de Polignac number, because 317192045 - 2² = 317192041 is a prime.

It is a super-2 number, since 2×317192045² = 201221586822564050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317192041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31719200 + ... + 31719209.

It is an arithmetic number, because the mean of its divisors is an integer number (95157615).

Almost surely, 2^317192045 is an apocalyptic number.

It is an amenable number.

317192045 is a deficient number, since it is larger than the sum of its proper divisors (63438415).

317192045 is an equidigital number, since it uses as much as digits as its factorization.

317192045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63438414.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 317192045 is about 17809.8861590971. The cubic root of 317192045 is about 681.9838584026.

The spelling of 317192045 in words is "three hundred seventeen million, one hundred ninety-two thousand, forty-five".