12090146 has 8 divisors (see below), whose sum is σ = 18278400. Its totient is φ = 5997348.

The previous prime is 12090131. The next prime is 12090151. The reversal of 12090146 is 64109021.

It is a happy number.

12090146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23546 + ... + 24053.

It is an arithmetic number, because the mean of its divisors is an integer number (2284800).

Almost surely, 2^12090146 is an apocalyptic number.

12090146 is a deficient number, since it is larger than the sum of its proper divisors (6188254).

12090146 is a wasteful number, since it uses less digits than its factorization.

12090146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47728.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 12090146 is about 3477.0887247811. The cubic root of 12090146 is about 229.5147045446.

Adding to 12090146 its reverse (64109021), we get a palindrome (76199167).

The spelling of 12090146 in words is "twelve million, ninety thousand, one hundred forty-six".