9165139912 has 32 divisors (see below), whose sum is σ = 18073036800. Its totient is φ = 4348802304.

The previous prime is 9165139901. The next prime is 9165139979. The reversal of 9165139912 is 2199315619.

It is a happy number.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (46).

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, 172737 + ... + 219472.

It is an arithmetic number, because the mean of its divisors is an integer number (564782400).

Almost surely, 2^9165139912 is an apocalyptic number.

9165139912 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

9165139912 is a deficient number, since it is larger than the sum of its proper divisors (8907896888).

9165139912 is a wasteful number, since it uses less digits than its factorization.

9165139912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392365 (or 392361 counting only the distinct ones).

The product of its digits is 131220, while the sum is 46.

The square root of 9165139912 is about 95734.7372274035. The cubic root of 9165139912 is about 2092.7291949623.

The spelling of 9165139912 in words is "nine billion, one hundred sixty-five million, one hundred thirty-nine thousand, nine hundred twelve".