12330181 has 4 divisors (see below), whose sum is σ = 12452364. Its totient is φ = 12208000.

The previous prime is 12330179. The next prime is 12330203. The reversal of 12330181 is 18103321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18103321 = 1553 ⋅11657.

It can be written as a sum of positive squares in 2 ways, for example, as 6713281 + 5616900 = 2591^2 + 2370^2 .

It is a cyclic number.

It is not a de Polignac number, because 12330181 - 2¹ = 12330179 is a prime.

It is a super-2 number, since 2×12330181² = 304066726985522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12330161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60940 + ... + 61141.

It is an arithmetic number, because the mean of its divisors is an integer number (3113091).

Almost surely, 2^12330181 is an apocalyptic number.

It is an amenable number.

12330181 is a deficient number, since it is larger than the sum of its proper divisors (122183).

12330181 is a wasteful number, since it uses less digits than its factorization.

12330181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122182.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 12330181 is about 3511.4357462440. The cubic root of 12330181 is about 231.0236727924.

The spelling of 12330181 in words is "twelve million, three hundred thirty thousand, one hundred eighty-one".