12143090 has 32 divisors (see below), whose sum is σ = 23328000. Its totient is φ = 4537728.

The previous prime is 12143077. The next prime is 12143099. The reversal of 12143090 is 9034121.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (12143099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14606 + ... + 15414.

It is an arithmetic number, because the mean of its divisors is an integer number (729000).

Almost surely, 2^12143090 is an apocalyptic number.

12143090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12143090 is a deficient number, since it is larger than the sum of its proper divisors (11184910).

12143090 is a wasteful number, since it uses less digits than its factorization.

12143090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 12143090 is about 3484.6936737682. The cubic root of 12143090 is about 229.8492395754.

The spelling of 12143090 in words is "twelve million, one hundred forty-three thousand, ninety".