1513399 has 2 divisors, whose sum is σ = 1513400. Its totient is φ = 1513398.

The previous prime is 1513397. The next prime is 1513417. The reversal of 1513399 is 9933151.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1513399 - 2¹ = 1513397 is a prime.

Together with 1513397, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1513399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1513397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 756699 + 756700.

It is an arithmetic number, because the mean of its divisors is an integer number (756700).

2^1513399 is an apocalyptic number.

1513399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1513399 is an equidigital number, since it uses as much as digits as its factorization.

1513399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3645, while the sum is 31.

The square root of 1513399 is about 1230.2028288051. The cubic root of 1513399 is about 114.8112594022.

The spelling of 1513399 in words is "one million, five hundred thirteen thousand, three hundred ninety-nine".