12165045 has 32 divisors (see below), whose sum is σ = 20881152. Its totient is φ = 6031872.

The previous prime is 12165031. The next prime is 12165059. The reversal of 12165045 is 54056121.

It is an interprime number because it is at equal distance from previous prime (12165031) and next prime (12165059).

It is not a de Polignac number, because 12165045 - 2⁴ = 12165029 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12289 + ... + 13241.

It is an arithmetic number, because the mean of its divisors is an integer number (652536).

Almost surely, 2^12165045 is an apocalyptic number.

12165045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12165045 is a deficient number, since it is larger than the sum of its proper divisors (8716107).

12165045 is a wasteful number, since it uses less digits than its factorization.

12165045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 12165045 is about 3487.8424563045. The cubic root of 12165045 is about 229.9876804996.

The spelling of 12165045 in words is "twelve million, one hundred sixty-five thousand, forty-five".