1313453139 has 4 divisors (see below), whose sum is σ = 1751270856. Its totient is φ = 875635424.

The previous prime is 1313453137. The next prime is 1313453149. The reversal of 1313453139 is 9313543131.

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 1313453139 - 2¹ = 1313453137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1313453137) 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, 218908854 + ... + 218908859.

It is an arithmetic number, because the mean of its divisors is an integer number (437817714).

Almost surely, 2^1313453139 is an apocalyptic number.

1313453139 is a deficient number, since it is larger than the sum of its proper divisors (437817717).

1313453139 is an equidigital number, since it uses as much as digits as its factorization.

1313453139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437817716.

The product of its digits is 14580, while the sum is 33.

The square root of 1313453139 is about 36241.5940460681. The cubic root of 1313453139 is about 1095.1447551588.

The spelling of 1313453139 in words is "one billion, three hundred thirteen million, four hundred fifty-three thousand, one hundred thirty-nine".