12170107 has 4 divisors (see below), whose sum is σ = 12376440. Its totient is φ = 11963776.

The previous prime is 12170099. The next prime is 12170117. The reversal of 12170107 is 70107121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12170107 - 2³ = 12170099 is a prime.

It is a super-2 number, since 2×12170107² = 296223008782898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12170117) 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, 103078 + ... + 103195.

It is an arithmetic number, because the mean of its divisors is an integer number (3094110).

Almost surely, 2^12170107 is an apocalyptic number.

12170107 is a deficient number, since it is larger than the sum of its proper divisors (206333).

12170107 is an equidigital number, since it uses as much as digits as its factorization.

12170107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206332.

The product of its (nonzero) digits is 98, while the sum is 19.

The square root of 12170107 is about 3488.5680443414. The cubic root of 12170107 is about 230.0195761535.

Adding to 12170107 its reverse (70107121), we get a palindrome (82277228).

The spelling of 12170107 in words is "twelve million, one hundred seventy thousand, one hundred seven".