1220653315 has 8 divisors (see below), whose sum is σ = 1674038880. Its totient is φ = 837019392.

The previous prime is 1220653307. The next prime is 1220653333. The reversal of 1220653315 is 5133560221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1220653315 - 2³ = 1220653307 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 17437870 + ... + 17437939.

It is an arithmetic number, because the mean of its divisors is an integer number (209254860).

Almost surely, 2^1220653315 is an apocalyptic number.

1220653315 is a deficient number, since it is larger than the sum of its proper divisors (453385565).

1220653315 is an equidigital number, since it uses as much as digits as its factorization.

1220653315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34875821.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 1220653315 is about 34937.8493184684. The cubic root of 1220653315 is about 1068.7204301293.

The spelling of 1220653315 in words is "one billion, two hundred twenty million, six hundred fifty-three thousand, three hundred fifteen".