1317960618 has 32 divisors (see below), whose sum is σ = 2881064256. Its totient is φ = 399472128.

The previous prime is 1317960617. The next prime is 1317960619. The reversal of 1317960618 is 8160697131.

It is an interprime number because it is at equal distance from previous prime (1317960617) and next prime (1317960619).

It is a self number, because there is not a number n which added to its sum of digits gives 1317960618.

It is not an unprimeable number, because it can be changed into a prime (1317960613) 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, 120871 + ... + 131322.

It is an arithmetic number, because the mean of its divisors is an integer number (90033258).

Almost surely, 2^1317960618 is an apocalyptic number.

1317960618 is an abundant number, since it is smaller than the sum of its proper divisors (1563103638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1317960618 is a wasteful number, since it uses less digits than its factorization.

1317960618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252278.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 1317960618 is about 36303.7273292977. The cubic root of 1317960618 is about 1096.3960892114.

The spelling of 1317960618 in words is "one billion, three hundred seventeen million, nine hundred sixty thousand, six hundred eighteen".