1155226265 has 8 divisors (see below), whose sum is σ = 1388612808. Its totient is φ = 922620160.

The previous prime is 1155226187. The next prime is 1155226271. The reversal of 1155226265 is 5626225511.

It can be written as a sum of positive squares in 4 ways, for example, as 192737689 + 962488576 = 13883^2 + 31024^2 .

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

It is not a de Polignac number, because 1155226265 - 2¹² = 1155222169 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191846 + ... + 197775.

It is an arithmetic number, because the mean of its divisors is an integer number (173576601).

Almost surely, 2^1155226265 is an apocalyptic number.

It is an amenable number.

1155226265 is a deficient number, since it is larger than the sum of its proper divisors (233386543).

1155226265 is an equidigital number, since it uses as much as digits as its factorization.

1155226265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390219.

The product of its digits is 36000, while the sum is 35.

The square root of 1155226265 is about 33988.6196395205. The cubic root of 1155226265 is about 1049.2742573756.

The spelling of 1155226265 in words is "one billion, one hundred fifty-five million, two hundred twenty-six thousand, two hundred sixty-five".