2141666 has 8 divisors (see below), whose sum is σ = 3316224. Its totient is φ = 1036260.

The previous prime is 2141653. The next prime is 2141669. The reversal of 2141666 is 6661412.

It is a happy number.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2141669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17210 + ... + 17333.

It is an arithmetic number, because the mean of its divisors is an integer number (414528).

2^2141666 is an apocalyptic number.

2141666 is a deficient number, since it is larger than the sum of its proper divisors (1174558).

2141666 is a wasteful number, since it uses less digits than its factorization.

2141666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34576.

The product of its digits is 1728, while the sum is 26.

The square root of 2141666 is about 1463.4432001277. The cubic root of 2141666 is about 128.8993064751.

The spelling of 2141666 in words is "two million, one hundred forty-one thousand, six hundred sixty-six".