1228817315 has 12 divisors (see below), whose sum is σ = 1620820992. Its totient is φ = 893684880.

The previous prime is 1228817311. The next prime is 1228817327. The reversal of 1228817315 is 5137188221.

It is not a de Polignac number, because 1228817315 - 2² = 1228817311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1228817311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1014947 + ... + 1016156.

It is an arithmetic number, because the mean of its divisors is an integer number (135068416).

Almost surely, 2^1228817315 is an apocalyptic number.

1228817315 is a deficient number, since it is larger than the sum of its proper divisors (392003677).

1228817315 is a wasteful number, since it uses less digits than its factorization.

1228817315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2031130 (or 2031119 counting only the distinct ones).

The product of its digits is 26880, while the sum is 38.

The square root of 1228817315 is about 35054.4906538378. The cubic root of 1228817315 is about 1071.0977510243.

The spelling of 1228817315 in words is "one billion, two hundred twenty-eight million, eight hundred seventeen thousand, three hundred fifteen".