12275990 has 16 divisors (see below), whose sum is σ = 22859280. Its totient is φ = 4740960.

The previous prime is 12275959. The next prime is 12276001. The reversal of 12275990 is 9957221.

12275990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12275990.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20876 + ... + 21455.

It is an arithmetic number, because the mean of its divisors is an integer number (1428705).

Almost surely, 2^12275990 is an apocalyptic number.

12275990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12275990 is a deficient number, since it is larger than the sum of its proper divisors (10583290).

12275990 is a wasteful number, since it uses less digits than its factorization.

12275990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42367.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 12275990 is about 3503.7108898995. The cubic root of 12275990 is about 230.6847269801.

The spelling of 12275990 in words is "twelve million, two hundred seventy-five thousand, nine hundred ninety".