12165001 has 4 divisors (see below), whose sum is σ = 12447952. Its totient is φ = 11882052.

The previous prime is 12164993. The next prime is 12165011. The reversal of 12165001 is 10056121.

It is a happy number.

12165001 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10056121 = 31 ⋅324391.

It is a cyclic number.

It is not a de Polignac number, because 12165001 - 2³ = 12164993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12165011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141411 + ... + 141496.

It is an arithmetic number, because the mean of its divisors is an integer number (3111988).

Almost surely, 2^12165001 is an apocalyptic number.

It is an amenable number.

12165001 is a deficient number, since it is larger than the sum of its proper divisors (282951).

12165001 is an equidigital number, since it uses as much as digits as its factorization.

12165001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282950.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 12165001 is about 3487.8361486744. The cubic root of 12165001 is about 229.9874032168.

The spelling of 12165001 in words is "twelve million, one hundred sixty-five thousand, one".