12146207 has 4 divisors (see below), whose sum is σ = 12157320. Its totient is φ = 12135096.

The previous prime is 12146201. The next prime is 12146221. The reversal of 12146207 is 70264121.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 70264121 = 1193 ⋅58897.

It is a cyclic number.

It is not a de Polignac number, because 12146207 - 2⁴ = 12146191 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 (12146201) 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, 3713 + ... + 6170.

It is an arithmetic number, because the mean of its divisors is an integer number (3039330).

Almost surely, 2^12146207 is an apocalyptic number.

12146207 is a deficient number, since it is larger than the sum of its proper divisors (11113).

12146207 is an equidigital number, since it uses as much as digits as its factorization.

12146207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11112.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 12146207 is about 3485.1408866788. The cubic root of 12146207 is about 229.8689044984.

The spelling of 12146207 in words is "twelve million, one hundred forty-six thousand, two hundred seven".