2166254 has 8 divisors (see below), whose sum is σ = 3325080. Its totient is φ = 1057896.

The previous prime is 2166251. The next prime is 2166289. The reversal of 2166254 is 4526612.

2166254 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a d-powerful number, because it can be written as 2³ + 1 + 6³ + 6³ + 2²¹ + 5⁵ + 4⁸ .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166251) 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, 12509 + ... + 12680.

It is an arithmetic number, because the mean of its divisors is an integer number (415635).

2^2166254 is an apocalyptic number.

2166254 is a deficient number, since it is larger than the sum of its proper divisors (1158826).

2166254 is a wasteful number, since it uses less digits than its factorization.

2166254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25234.

The product of its digits is 2880, while the sum is 26.

The square root of 2166254 is about 1471.8199618160. The cubic root of 2166254 is about 129.3907189159.

The spelling of 2166254 in words is "two million, one hundred sixty-six thousand, two hundred fifty-four".