12166490 has 16 divisors (see below), whose sum is σ = 25028352. Its totient is φ = 4171344.

The previous prime is 12166481. The next prime is 12166493. The reversal of 12166490 is 9466121.

It is not an unprimeable number, because it can be changed into a prime (12166493) 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, 86834 + ... + 86973.

It is an arithmetic number, because the mean of its divisors is an integer number (1564272).

Almost surely, 2^12166490 is an apocalyptic number.

12166490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12166490 is an abundant number, since it is smaller than the sum of its proper divisors (12861862).

12166490 is a wasteful number, since it uses less digits than its factorization.

12166490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173821.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 12166490 is about 3488.0495982712. The cubic root of 12166490 is about 229.9967863445.

The spelling of 12166490 in words is "twelve million, one hundred sixty-six thousand, four hundred ninety".