12180354 has 16 divisors (see below), whose sum is σ = 24820992. Its totient is φ = 3983408.

The previous prime is 12180341. The next prime is 12180359. The reversal of 12180354 is 45308121.

It is a super-2 number, since 2×12180354² = 296722047130632, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12180359) 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 7 ways as a sum of consecutive naturals, for example, 18834 + ... + 19469.

It is an arithmetic number, because the mean of its divisors is an integer number (1551312).

Almost surely, 2^12180354 is an apocalyptic number.

12180354 is an abundant number, since it is smaller than the sum of its proper divisors (12640638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12180354 is a wasteful number, since it uses less digits than its factorization.

12180354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38361.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 12180354 is about 3490.0363894951. The cubic root of 12180354 is about 230.0841154214.

Adding to 12180354 its reverse (45308121), we get a palindrome (57488475).

The spelling of 12180354 in words is "twelve million, one hundred eighty thousand, three hundred fifty-four".