12180146 has 8 divisors (see below), whose sum is σ = 19931184. Its totient is φ = 5536420.

The previous prime is 12180101. The next prime is 12180151. The reversal of 12180146 is 64108121.

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

It is a super-3 number, since 3×12180146³ (a number of 22 digits) contains 333 as substring.

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, 276800 + ... + 276843.

It is an arithmetic number, because the mean of its divisors is an integer number (2491398).

Almost surely, 2^12180146 is an apocalyptic number.

12180146 is a deficient number, since it is larger than the sum of its proper divisors (7751038).

12180146 is a wasteful number, since it uses less digits than its factorization.

12180146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553656.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 12180146 is about 3490.0065902517. The cubic root of 12180146 is about 230.0828057231.

Adding to 12180146 its reverse (64108121), we get a palindrome (76288267).

The spelling of 12180146 in words is "twelve million, one hundred eighty thousand, one hundred forty-six".