1315993 has 12 divisors (see below), whose sum is σ = 1551312. Its totient is φ = 1113000.

The previous prime is 1315969. The next prime is 1316009. The reversal of 1315993 is 3995131.

It is not a de Polignac number, because 1315993 - 2⁵ = 1315961 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1315943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5118 + ... + 5368.

It is an arithmetic number, because the mean of its divisors is an integer number (129276).

2^1315993 is an apocalyptic number.

It is an amenable number.

1315993 is a deficient number, since it is larger than the sum of its proper divisors (235319).

1315993 is a wasteful number, since it uses less digits than its factorization.

1315993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372 (or 365 counting only the distinct ones).

The product of its digits is 3645, while the sum is 31.

The square root of 1315993 is about 1147.1673809868. The cubic root of 1315993 is about 109.5850204633.

The spelling of 1315993 in words is "one million, three hundred fifteen thousand, nine hundred ninety-three".