1155216355 has 8 divisors (see below), whose sum is σ = 1412415792. Its totient is φ = 906735648.

The previous prime is 1155216343. The next prime is 1155216383. The reversal of 1155216355 is 5536125511.

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 1155216355 - 2⁹ = 1155215843 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 1155216355.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2179389 + ... + 2179918.

It is an arithmetic number, because the mean of its divisors is an integer number (176551974).

Almost surely, 2^1155216355 is an apocalyptic number.

1155216355 is a deficient number, since it is larger than the sum of its proper divisors (257199437).

1155216355 is an equidigital number, since it uses as much as digits as its factorization.

1155216355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4359365.

The product of its digits is 22500, while the sum is 34.

The square root of 1155216355 is about 33988.4738551174. The cubic root of 1155216355 is about 1049.2712570001.

The spelling of 1155216355 in words is "one billion, one hundred fifty-five million, two hundred sixteen thousand, three hundred fifty-five".