1312104 has 32 divisors (see below), whose sum is σ = 3424320. Its totient is φ = 418176.

The previous prime is 1312093. The next prime is 1312133. The reversal of 1312104 is 4012131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1312104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 637 + ... + 1740.

It is an arithmetic number, because the mean of its divisors is an integer number (107010).

2^1312104 is an apocalyptic number.

It is an amenable number.

1312104 is an abundant number, since it is smaller than the sum of its proper divisors (2112216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312104 is a wasteful number, since it uses less digits than its factorization.

1312104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2409 (or 2405 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1312104 is about 1145.4710821317. The cubic root of 1312104 is about 109.4769660272.

Adding to 1312104 its reverse (4012131), we get a palindrome (5324235).

The spelling of 1312104 in words is "one million, three hundred twelve thousand, one hundred four".