12165149 has 8 divisors (see below), whose sum is σ = 13559040. Its totient is φ = 10846656.

The previous prime is 12165133. The next prime is 12165161. The reversal of 12165149 is 94156121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12165149 - 2⁴ = 12165133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12165199) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 18509 + ... + 19154.

It is an arithmetic number, because the mean of its divisors is an integer number (1694880).

Almost surely, 2^12165149 is an apocalyptic number.

12165149 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12165149 is a deficient number, since it is larger than the sum of its proper divisors (1393891).

12165149 is a wasteful number, since it uses less digits than its factorization.

12165149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37699.

The product of its digits is 2160, while the sum is 29.

The square root of 12165149 is about 3487.8573652029. The cubic root of 12165149 is about 229.9883358924.

The spelling of 12165149 in words is "twelve million, one hundred sixty-five thousand, one hundred forty-nine".