12205975 has 6 divisors (see below), whose sum is σ = 15135440. Its totient is φ = 9764760.

The previous prime is 12205957. The next prime is 12205981. The reversal of 12205975 is 57950221.

It is not a de Polignac number, because 12205975 - 2⁹ = 12205463 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 244095 + ... + 244144.

Almost surely, 2^12205975 is an apocalyptic number.

12205975 is a deficient number, since it is larger than the sum of its proper divisors (2929465).

12205975 is an equidigital number, since it uses as much as digits as its factorization.

12205975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488249 (or 488244 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 12205975 is about 3493.7050533781. The cubic root of 12205975 is about 230.2453273927.

The spelling of 12205975 in words is "twelve million, two hundred five thousand, nine hundred seventy-five".