1315587845 has 16 divisors (see below), whose sum is σ = 1854703872. Its totient is φ = 883191360.

The previous prime is 1315587773. The next prime is 1315587851. The reversal of 1315587845 is 5487855131.

It is not a de Polignac number, because 1315587845 - 2⁸ = 1315587589 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1315587845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 919277 + ... + 920706.

It is an arithmetic number, because the mean of its divisors is an integer number (115918992).

Almost surely, 2^1315587845 is an apocalyptic number.

It is an amenable number.

1315587845 is a deficient number, since it is larger than the sum of its proper divisors (539116027).

1315587845 is a wasteful number, since it uses less digits than its factorization.

1315587845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840012.

The product of its digits is 672000, while the sum is 47.

The square root of 1315587845 is about 36271.0331394075. The cubic root of 1315587845 is about 1095.7377332239.

The spelling of 1315587845 in words is "one billion, three hundred fifteen million, five hundred eighty-seven thousand, eight hundred forty-five".