1312604 has 24 divisors (see below), whose sum is σ = 2469600. Its totient is φ = 608256.

The previous prime is 1312603. The next prime is 1312637. The reversal of 1312604 is 4062131.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6497 + ... + 6695.

It is an arithmetic number, because the mean of its divisors is an integer number (102900).

2^1312604 is an apocalyptic number.

It is an amenable number.

1312604 is a deficient number, since it is larger than the sum of its proper divisors (1156996).

1312604 is a wasteful number, since it uses less digits than its factorization.

1312604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317 (or 315 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1312604 is about 1145.6893121610. The cubic root of 1312604 is about 109.4908702938.

Adding to 1312604 its reverse (4062131), we get a palindrome (5374735).

The spelling of 1312604 in words is "one million, three hundred twelve thousand, six hundred four".