1208315218 has 16 divisors (see below), whose sum is σ = 2045424960. Its totient is φ = 530294800.

The previous prime is 1208315209. The next prime is 1208315237. The reversal of 1208315218 is 8125138021.

It is a self number, because there is not a number n which added to its sum of digits gives 1208315218.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 946318 + ... + 947593.

It is an arithmetic number, because the mean of its divisors is an integer number (127839060).

Almost surely, 2^1208315218 is an apocalyptic number.

1208315218 is a deficient number, since it is larger than the sum of its proper divisors (837109742).

1208315218 is a wasteful number, since it uses less digits than its factorization.

1208315218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1893953.

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 1208315218 is about 34760.8287875879. The cubic root of 1208315218 is about 1065.1074319831.

The spelling of 1208315218 in words is "one billion, two hundred eight million, three hundred fifteen thousand, two hundred eighteen".