1315500601 has 4 divisors (see below), whose sum is σ = 1316079604. Its totient is φ = 1314921600.

The previous prime is 1315500577. The next prime is 1315500607. The reversal of 1315500601 is 1060055131.

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 483120400 + 832380201 = 21980^2 + 28851^2 .

It is a cyclic number.

It is not a de Polignac number, because 1315500601 - 2¹⁵ = 1315467833 is a prime.

It is a super-2 number, since 2×1315500601² = 3461083662462722402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1315500607) 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, 286080 + ... + 290641.

It is an arithmetic number, because the mean of its divisors is an integer number (329019901).

Almost surely, 2^1315500601 is an apocalyptic number.

It is an amenable number.

1315500601 is a deficient number, since it is larger than the sum of its proper divisors (579003).

1315500601 is an equidigital number, since it uses as much as digits as its factorization.

1315500601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579002.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 1315500601 is about 36269.8304517680. The cubic root of 1315500601 is about 1095.7135111859.

Adding to 1315500601 its reverse (1060055131), we get a palindrome (2375555732).

The spelling of 1315500601 in words is "one billion, three hundred fifteen million, five hundred thousand, six hundred one".