12175990 has 16 divisors (see below), whose sum is σ = 21979152. Its totient is φ = 4856544.

The previous prime is 12175987. The next prime is 12176077. The reversal of 12175990 is 9957121.

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, 2437 + ... + 5503.

It is an arithmetic number, because the mean of its divisors is an integer number (1373697).

Almost surely, 2^12175990 is an apocalyptic number.

12175990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12175990 is a deficient number, since it is larger than the sum of its proper divisors (9803162).

12175990 is a wasteful number, since it uses less digits than its factorization.

12175990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3471.

The product of its (nonzero) digits is 5670, while the sum is 34.

The square root of 12175990 is about 3489.4111251041. The cubic root of 12175990 is about 230.0566338168.

The spelling of 12175990 in words is "twelve million, one hundred seventy-five thousand, nine hundred ninety".