1315899 has 32 divisors (see below), whose sum is σ = 2204160. Its totient is φ = 769824.

The previous prime is 1315891. The next prime is 1315901. The reversal of 1315899 is 9985131.

It is a happy number.

It is not a de Polignac number, because 1315899 - 2³ = 1315891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1315891) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7992 + ... + 8154.

It is an arithmetic number, because the mean of its divisors is an integer number (68880).

2^1315899 is an apocalyptic number.

1315899 is a deficient number, since it is larger than the sum of its proper divisors (888261).

1315899 is a wasteful number, since it uses less digits than its factorization.

1315899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208 (or 202 counting only the distinct ones).

The product of its digits is 9720, while the sum is 36.

The square root of 1315899 is about 1147.1264097736. The cubic root of 1315899 is about 109.5824112201.

The spelling of 1315899 in words is "one million, three hundred fifteen thousand, eight hundred ninety-nine".