1297413 has 18 divisors (see below), whose sum is σ = 2031666. Its totient is φ = 797472.

The previous prime is 1297411. The next prime is 1297421. The reversal of 1297413 is 3147921.

It can be written as a sum of positive squares in 3 ways, for example, as 91809 + 1205604 = 303^2 + 1098^2 .

It is not a de Polignac number, because 1297413 - 2¹ = 1297411 is a prime.

It is an Ulam number.

1297413 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297411) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1095 + ... + 1947.

2^1297413 is an apocalyptic number.

1297413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1297413 is a deficient number, since it is larger than the sum of its proper divisors (734253).

1297413 is a wasteful number, since it uses less digits than its factorization.

1297413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885 (or 869 counting only the distinct ones).

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

The square root of 1297413 is about 1139.0403855878. The cubic root of 1297413 is about 109.0668445025.

The spelling of 1297413 in words is "one million, two hundred ninety-seven thousand, four hundred thirteen".