1165235265 has 48 divisors (see below), whose sum is σ = 2084142528. Its totient is φ = 601803648.

The previous prime is 1165235251. The next prime is 1165235297. The reversal of 1165235265 is 5625325611.

1165235265 is a `hidden beast` number, since 1 + 165 + 235 + 265 = 666.

It is not a de Polignac number, because 1165235265 - 2⁸ = 1165235009 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 376414 + ... + 379496.

It is an arithmetic number, because the mean of its divisors is an integer number (43419636).

Almost surely, 2^1165235265 is an apocalyptic number.

1165235265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1165235265 is a deficient number, since it is larger than the sum of its proper divisors (918907263).

1165235265 is a wasteful number, since it uses less digits than its factorization.

1165235265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3358 (or 3355 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 1165235265 is about 34135.5425473216. The cubic root of 1165235265 is about 1052.2958878097.

The spelling of 1165235265 in words is "one billion, one hundred sixty-five million, two hundred thirty-five thousand, two hundred sixty-five".