1310661115 has 16 divisors (see below), whose sum is σ = 1609422048. Its totient is φ = 1024281856.

The previous prime is 1310661089. The next prime is 1310661127. The reversal of 1310661115 is 5111660131.

It is a cyclic number.

It is not a de Polignac number, because 1310661115 - 2²⁵ = 1277106683 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1310661115.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51132 + ... + 72358.

It is an arithmetic number, because the mean of its divisors is an integer number (100588878).

Almost surely, 2^1310661115 is an apocalyptic number.

1310661115 is a deficient number, since it is larger than the sum of its proper divisors (298760933).

1310661115 is a wasteful number, since it uses less digits than its factorization.

1310661115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21518.

The product of its (nonzero) digits is 540, while the sum is 25.

The square root of 1310661115 is about 36203.0539457654. The cubic root of 1310661115 is about 1094.3682169666.

The spelling of 1310661115 in words is "one billion, three hundred ten million, six hundred sixty-one thousand, one hundred fifteen".