1216060315 has 32 divisors (see below), whose sum is σ = 1533812544. Its totient is φ = 924618240.

The previous prime is 1216060273. The next prime is 1216060331. The reversal of 1216060315 is 5130606121.

It is not a de Polignac number, because 1216060315 - 2¹¹ = 1216058267 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 1216060315.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2222872 + ... + 2223418.

It is an arithmetic number, because the mean of its divisors is an integer number (47931642).

Almost surely, 2^1216060315 is an apocalyptic number.

1216060315 is a deficient number, since it is larger than the sum of its proper divisors (317752229).

1216060315 is a wasteful number, since it uses less digits than its factorization.

1216060315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1216060315 is about 34872.0563632258. The cubic root of 1216060315 is about 1067.3783066362.

Adding to 1216060315 its reverse (5130606121), we get a palindrome (6346666436).

The spelling of 1216060315 in words is "one billion, two hundred sixteen million, sixty thousand, three hundred fifteen".