1313271849 has 16 divisors (see below), whose sum is σ = 1844078400. Its totient is φ = 829034496.

The previous prime is 1313271823. The next prime is 1313271851. The reversal of 1313271849 is 9481723131.

It is not a de Polignac number, because 1313271849 - 2¹³ = 1313263657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1313271859) 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, 152737 + ... + 161105.

It is an arithmetic number, because the mean of its divisors is an integer number (115254900).

Almost surely, 2^1313271849 is an apocalyptic number.

1313271849 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1313271849 is a deficient number, since it is larger than the sum of its proper divisors (530806551).

1313271849 is a wasteful number, since it uses less digits than its factorization.

1313271849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11144.

The product of its digits is 36288, while the sum is 39.

The square root of 1313271849 is about 36239.0928280497. The cubic root of 1313271849 is about 1095.0943668803.

The spelling of 1313271849 in words is "one billion, three hundred thirteen million, two hundred seventy-one thousand, eight hundred forty-nine".