1313387 has 4 divisors (see below), whose sum is σ = 1316040. Its totient is φ = 1310736.

The previous prime is 1313383. The next prime is 1313423. The reversal of 1313387 is 7833131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1313387 - 2² = 1313383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313383) 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, 338 + ... + 1655.

It is an arithmetic number, because the mean of its divisors is an integer number (329010).

2^1313387 is an apocalyptic number.

1313387 is a deficient number, since it is larger than the sum of its proper divisors (2653).

1313387 is an equidigital number, since it uses as much as digits as its factorization.

1313387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2652.

The product of its digits is 1512, while the sum is 26.

The square root of 1313387 is about 1146.0309768937. The cubic root of 1313387 is about 109.5126372827.

The spelling of 1313387 in words is "one million, three hundred thirteen thousand, three hundred eighty-seven".