1317092497 has 4 divisors (see below), whose sum is σ = 1505248576. Its totient is φ = 1128936420.

The previous prime is 1317092479. The next prime is 1317092501. The reversal of 1317092497 is 7942907131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1317092497 - 2²⁷ = 1182874769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1317092417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94078029 + ... + 94078042.

It is an arithmetic number, because the mean of its divisors is an integer number (376312144).

Almost surely, 2^1317092497 is an apocalyptic number.

It is an amenable number.

1317092497 is a deficient number, since it is larger than the sum of its proper divisors (188156079).

1317092497 is an equidigital number, since it uses as much as digits as its factorization.

1317092497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188156078.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 1317092497 is about 36291.7689979422. The cubic root of 1317092497 is about 1096.1553097545.

The spelling of 1317092497 in words is "one billion, three hundred seventeen million, ninety-two thousand, four hundred ninety-seven".