1313889 has 8 divisors (see below), whose sum is σ = 1761792. Its totient is φ = 870960.

The previous prime is 1313881. The next prime is 1313891. The reversal of 1313889 is 9883131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1313889 - 2³ = 1313881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1313881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 574 + ... + 1719.

It is an arithmetic number, because the mean of its divisors is an integer number (220224).

2^1313889 is an apocalyptic number.

It is an amenable number.

1313889 is a deficient number, since it is larger than the sum of its proper divisors (447903).

1313889 is a wasteful number, since it uses less digits than its factorization.

1313889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2487.

The product of its digits is 5184, while the sum is 33.

The square root of 1313889 is about 1146.2499727372. The cubic root of 1313889 is about 109.5265880683.

The spelling of 1313889 in words is "one million, three hundred thirteen thousand, eight hundred eighty-nine".