1315332215 has 4 divisors (see below), whose sum is σ = 1578398664. Its totient is φ = 1052265768.

The previous prime is 1315332199. The next prime is 1315332223. The reversal of 1315332215 is 5122335131.

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

It is a cyclic number.

It is not a de Polignac number, because 1315332215 - 2⁴ = 1315332199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131533217 + ... + 131533226.

It is an arithmetic number, because the mean of its divisors is an integer number (394599666).

Almost surely, 2^1315332215 is an apocalyptic number.

1315332215 is a deficient number, since it is larger than the sum of its proper divisors (263066449).

1315332215 is an equidigital number, since it uses as much as digits as its factorization.

1315332215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263066448.

The product of its digits is 2700, while the sum is 26.

The square root of 1315332215 is about 36267.5090818214. The cubic root of 1315332215 is about 1095.6667582140. Note that the first 3 decimals are identical.

Adding to 1315332215 its reverse (5122335131), we get a palindrome (6437667346).

The spelling of 1315332215 in words is "one billion, three hundred fifteen million, three hundred thirty-two thousand, two hundred fifteen".