1312525015 has 8 divisors (see below), whose sum is σ = 1643509728. Its totient is φ = 1004366880.

The previous prime is 1312525009. The next prime is 1312525031. The reversal of 1312525015 is 5105252131.

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

It is not a de Polignac number, because 1312525015 - 2⁷ = 1312524887 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 7 ways as a sum of consecutive naturals, for example, 5706516 + ... + 5706745.

It is an arithmetic number, because the mean of its divisors is an integer number (205438716).

Almost surely, 2^1312525015 is an apocalyptic number.

1312525015 is a deficient number, since it is larger than the sum of its proper divisors (330984713).

1312525015 is a wasteful number, since it uses less digits than its factorization.

1312525015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11413289.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 1312525015 is about 36228.7871036280. The cubic root of 1312525015 is about 1094.8867407164.

Adding to 1312525015 its reverse (5105252131), we get a palindrome (6417777146).

The spelling of 1312525015 in words is "one billion, three hundred twelve million, five hundred twenty-five thousand, fifteen".