1233165885 has 16 divisors (see below), whose sum is σ = 2254932096. Its totient is φ = 563732928.

The previous prime is 1233165877. The next prime is 1233165919. The reversal of 1233165885 is 5885613321.

It is not a de Polignac number, because 1233165885 - 2³ = 1233165877 is a prime.

It is a Curzon number.

It is a congruent 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, 5872114 + ... + 5872323.

It is an arithmetic number, because the mean of its divisors is an integer number (140933256).

Almost surely, 2^1233165885 is an apocalyptic number.

1233165885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1233165885 is a deficient number, since it is larger than the sum of its proper divisors (1021766211).

1233165885 is a wasteful number, since it uses less digits than its factorization.

1233165885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11744452.

The product of its digits is 172800, while the sum is 42.

The square root of 1233165885 is about 35116.4617380510. The cubic root of 1233165885 is about 1072.3597395377.

The spelling of 1233165885 in words is "one billion, two hundred thirty-three million, one hundred sixty-five thousand, eight hundred eighty-five".