1155315472 has 10 divisors (see below), whose sum is σ = 2238423758. Its totient is φ = 577657728.

The previous prime is 1155315451. The next prime is 1155315481. The reversal of 1155315472 is 2745135511.

It can be written as a sum of positive squares in only one way, i.e., 1080042496 + 75272976 = 32864^2 + 8676^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36103593 + ... + 36103624.

Almost surely, 2^1155315472 is an apocalyptic number.

It is an amenable number.

1155315472 is a deficient number, since it is larger than the sum of its proper divisors (1083108286).

1155315472 is an equidigital number, since it uses as much as digits as its factorization.

1155315472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72207225 (or 72207219 counting only the distinct ones).

The product of its digits is 21000, while the sum is 34.

The square root of 1155315472 is about 33989.9319210851. The cubic root of 1155315472 is about 1049.3012651293.

The spelling of 1155315472 in words is "one billion, one hundred fifty-five million, three hundred fifteen thousand, four hundred seventy-two".