1315497 has 4 divisors (see below), whose sum is σ = 1754000. Its totient is φ = 876996.

The previous prime is 1315493. The next prime is 1315507. The reversal of 1315497 is 7945131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7945131 = 3 ⋅2648377.

It is not a de Polignac number, because 1315497 - 2² = 1315493 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1315493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219247 + ... + 219252.

It is an arithmetic number, because the mean of its divisors is an integer number (438500).

2^1315497 is an apocalyptic number.

It is an amenable number.

1315497 is a deficient number, since it is larger than the sum of its proper divisors (438503).

1315497 is an equidigital number, since it uses as much as digits as its factorization.

1315497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438502.

The product of its digits is 3780, while the sum is 30.

The square root of 1315497 is about 1146.9511759443. The cubic root of 1315497 is about 109.5712511397.

The spelling of 1315497 in words is "one million, three hundred fifteen thousand, four hundred ninety-seven".