1310539209 has 16 divisors (see below), whose sum is σ = 1998978432. Its totient is φ = 748142208.

The previous prime is 1310539199. The next prime is 1310539213. The reversal of 1310539209 is 9029350131.

It is not a de Polignac number, because 1310539209 - 2⁵ = 1310539177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1310539209.

It is not an unprimeable number, because it can be changed into a prime (1310539259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8514 + ... + 51899.

It is an arithmetic number, because the mean of its divisors is an integer number (124936152).

Almost surely, 2^1310539209 is an apocalyptic number.

It is an amenable number.

1310539209 is a deficient number, since it is larger than the sum of its proper divisors (688439223).

1310539209 is a wasteful number, since it uses less digits than its factorization.

1310539209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61456.

The product of its (nonzero) digits is 7290, while the sum is 33.

The square root of 1310539209 is about 36201.3702641212. The cubic root of 1310539209 is about 1094.3342864596.

The spelling of 1310539209 in words is "one billion, three hundred ten million, five hundred thirty-nine thousand, two hundred nine".