1317081370 has 48 divisors (see below), whose sum is σ = 2611806120. Its totient is φ = 477847040.

The previous prime is 1317081299. The next prime is 1317081383. The reversal of 1317081370 is 731807131.

It can be written as a sum of positive squares in 4 ways, for example, as 1079582449 + 237498921 = 32857^2 + 15411^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 687534 + ... + 689446.

Almost surely, 2^1317081370 is an apocalyptic number.

1317081370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1317081370 is a deficient number, since it is larger than the sum of its proper divisors (1294724750).

1317081370 is a wasteful number, since it uses less digits than its factorization.

1317081370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511 (or 2500 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 1317081370 is about 36291.6156983951. The cubic root of 1317081370 is about 1096.1522229162.

The spelling of 1317081370 in words is "one billion, three hundred seventeen million, eighty-one thousand, three hundred seventy".