1313389 has 16 divisors (see below), whose sum is σ = 1685376. Its totient is φ = 993600.

The previous prime is 1313383. The next prime is 1313423. The reversal of 1313389 is 9833131.

1313389 = 95² + 96² + ... + 168².

It is a cyclic number.

It is not a de Polignac number, because 1313389 - 2⁵ = 1313357 is a prime.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 2619 + ... + 3079.

It is an arithmetic number, because the mean of its divisors is an integer number (105336).

2^1313389 is an apocalyptic number.

It is an amenable number.

1313389 is a deficient number, since it is larger than the sum of its proper divisors (371987).

1313389 is a wasteful number, since it uses less digits than its factorization.

1313389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516.

The product of its digits is 1944, while the sum is 28.

The square root of 1313389 is about 1146.0318494702. The cubic root of 1313389 is about 109.5126928706.

The spelling of 1313389 in words is "one million, three hundred thirteen thousand, three hundred eighty-nine".