12920118 has 16 divisors (see below), whose sum is σ = 26674176. Its totient is φ = 4167720.

The previous prime is 12920093. The next prime is 12920177. The reversal of 12920118 is 81102921.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 34546 + ... + 34917.

It is an arithmetic number, because the mean of its divisors is an integer number (1667136).

Almost surely, 2^12920118 is an apocalyptic number.

12920118 is an abundant number, since it is smaller than the sum of its proper divisors (13754058).

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

12920118 is a wasteful number, since it uses less digits than its factorization.

12920118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69499.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 12920118 is about 3594.4565653239. The cubic root of 12920118 is about 234.6508652878.

The spelling of 12920118 in words is "twelve million, nine hundred twenty thousand, one hundred eighteen".