1315157317 has 8 divisors (see below), whose sum is σ = 1344721824. Its totient is φ = 1285768848.

The previous prime is 1315157201. The next prime is 1315157321. The reversal of 1315157317 is 7137515131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1315157317 - 2⁷ = 1315157189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315157357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28843 + ... + 58840.

It is an arithmetic number, because the mean of its divisors is an integer number (168090228).

Almost surely, 2^1315157317 is an apocalyptic number.

It is an amenable number.

1315157317 is a deficient number, since it is larger than the sum of its proper divisors (29564507).

1315157317 is an equidigital number, since it uses as much as digits as its factorization.

1315157317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88019.

The product of its digits is 11025, while the sum is 34.

The square root of 1315157317 is about 36265.0977800971. The cubic root of 1315157317 is about 1095.6181929373.

The spelling of 1315157317 in words is "one billion, three hundred fifteen million, one hundred fifty-seven thousand, three hundred seventeen".