1312497 has 8 divisors (see below), whose sum is σ = 1944480. Its totient is φ = 874980.

The previous prime is 1312471. The next prime is 1312513. The reversal of 1312497 is 7942131.

It is not a de Polignac number, because 1312497 - 2¹⁰ = 1311473 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 48611 = 1312497 / (1 + 3 + 1 + 2 + 4 + 9 + 7).

It is a self number, because there is not a number n which added to its sum of digits gives 1312497.

It is not an unprimeable number, because it can be changed into a prime (1312397) 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, 24279 + ... + 24332.

It is an arithmetic number, because the mean of its divisors is an integer number (243060).

2^1312497 is an apocalyptic number.

It is an amenable number.

1312497 is a deficient number, since it is larger than the sum of its proper divisors (631983).

1312497 is an equidigital number, since it uses as much as digits as its factorization.

1312497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48620 (or 48614 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 1312497 is about 1145.6426144309. The cubic root of 1312497 is about 109.4878950777.

It can be divided in two parts, 131 and 2497, that added together give a triangular number (2628 = T₇₂).

The spelling of 1312497 in words is "one million, three hundred twelve thousand, four hundred ninety-seven".