1513397 has 2 divisors, whose sum is σ = 1513398. Its totient is φ = 1513396.

The previous prime is 1513387. The next prime is 1513399. The reversal of 1513397 is 7933151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1473796 + 39601 = 1214^2 + 199^2 .

It is an emirp because it is prime and its reverse (7933151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1513397 - 2⁴ = 1513381 is a prime.

Together with 1513399, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1513399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 756698 + 756699.

It is an arithmetic number, because the mean of its divisors is an integer number (756699).

2^1513397 is an apocalyptic number.

It is an amenable number.

1513397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1513397 is an equidigital number, since it uses as much as digits as its factorization.

1513397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2835, while the sum is 29.

The square root of 1513397 is about 1230.2020159307. The cubic root of 1513397 is about 114.8112088268.

The spelling of 1513397 in words is "one million, five hundred thirteen thousand, three hundred ninety-seven".