1155015165 has 16 divisors (see below), whose sum is σ = 1851667200. Its totient is φ = 614793792.

The previous prime is 1155015163. The next prime is 1155015203. The reversal of 1155015165 is 5615105511.

It is not a de Polignac number, because 1155015165 - 2¹ = 1155015163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155015163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68005 + ... + 83274.

It is an arithmetic number, because the mean of its divisors is an integer number (115729200).

Almost surely, 2^1155015165 is an apocalyptic number.

1155015165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1155015165 is a deficient number, since it is larger than the sum of its proper divisors (696652035).

1155015165 is a wasteful number, since it uses less digits than its factorization.

1155015165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151796.

The product of its (nonzero) digits is 3750, while the sum is 30.

The square root of 1155015165 is about 33985.5140464287. The cubic root of 1155015165 is about 1049.2103405206.

The spelling of 1155015165 in words is "one billion, one hundred fifty-five million, fifteen thousand, one hundred sixty-five".