1313809953 has 8 divisors (see below), whose sum is σ = 1752686400. Its totient is φ = 875403408.

The previous prime is 1313809909. The next prime is 1313809969. The reversal of 1313809953 is 3599083131.

It is a happy number.

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

It is not a de Polignac number, because 1313809953 - 2⁸ = 1313809697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1313809993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110898 + ... + 122171.

It is an arithmetic number, because the mean of its divisors is an integer number (219085800).

Almost surely, 2^1313809953 is an apocalyptic number.

It is an amenable number.

1313809953 is a deficient number, since it is larger than the sum of its proper divisors (438876447).

1313809953 is a wasteful number, since it uses less digits than its factorization.

1313809953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234951.

The product of its (nonzero) digits is 87480, while the sum is 42.

The square root of 1313809953 is about 36246.5164257201. The cubic root of 1313809953 is about 1095.2439155550.

The spelling of 1313809953 in words is "one billion, three hundred thirteen million, eight hundred nine thousand, nine hundred fifty-three".