1315566701 has 4 divisors (see below), whose sum is σ = 1360931100. Its totient is φ = 1270202304.

The previous prime is 1315566691. The next prime is 1315566737. The reversal of 1315566701 is 1076655131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1076655131 = 29 ⋅37126039.

It can be written as a sum of positive squares in 2 ways, for example, as 224850025 + 1090716676 = 14995^2 + 33026^2 .

It is a cyclic number.

It is not a de Polignac number, because 1315566701 - 2²² = 1311372397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315506701) 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, 22682156 + ... + 22682213.

It is an arithmetic number, because the mean of its divisors is an integer number (340232775).

Almost surely, 2^1315566701 is an apocalyptic number.

It is an amenable number.

1315566701 is a deficient number, since it is larger than the sum of its proper divisors (45364399).

1315566701 is an equidigital number, since it uses as much as digits as its factorization.

1315566701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45364398.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 1315566701 is about 36270.7416659764. The cubic root of 1315566701 is about 1095.7318629956.

The spelling of 1315566701 in words is "one billion, three hundred fifteen million, five hundred sixty-six thousand, seven hundred one".