1313953507 has 4 divisors (see below), whose sum is σ = 1356339136. Its totient is φ = 1271567880.

The previous prime is 1313953447. The next prime is 1313953559. The reversal of 1313953507 is 7053593131.

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 1313953507 - 2¹⁵ = 1313920739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313953007) 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, 21192768 + ... + 21192829.

It is an arithmetic number, because the mean of its divisors is an integer number (339084784).

Almost surely, 2^1313953507 is an apocalyptic number.

1313953507 is a deficient number, since it is larger than the sum of its proper divisors (42385629).

1313953507 is an equidigital number, since it uses as much as digits as its factorization.

1313953507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42385628.

The product of its (nonzero) digits is 42525, while the sum is 37.

The square root of 1313953507 is about 36248.4966171012. The cubic root of 1313953507 is about 1095.2838048654.

The spelling of 1313953507 in words is "one billion, three hundred thirteen million, nine hundred fifty-three thousand, five hundred seven".