1155294265 has 16 divisors (see below), whose sum is σ = 1416885696. Its totient is φ = 903988800.

The previous prime is 1155294241. The next prime is 1155294289. The reversal of 1155294265 is 5624925511.

It is an interprime number because it is at equal distance from previous prime (1155294241) and next prime (1155294289).

It is not a de Polignac number, because 1155294265 - 2¹¹ = 1155292217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81130 + ... + 94300.

It is an arithmetic number, because the mean of its divisors is an integer number (88555356).

Almost surely, 2^1155294265 is an apocalyptic number.

It is an amenable number.

1155294265 is a deficient number, since it is larger than the sum of its proper divisors (261591431).

1155294265 is a wasteful number, since it uses less digits than its factorization.

1155294265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13560.

The product of its digits is 108000, while the sum is 40.

The square root of 1155294265 is about 33989.6199596289. The cubic root of 1155294265 is about 1049.2948447566.

The spelling of 1155294265 in words is "one billion, one hundred fifty-five million, two hundred ninety-four thousand, two hundred sixty-five".