612166 has 4 divisors (see below), whose sum is σ = 918252. Its totient is φ = 306082.

The previous prime is 612149. The next prime is 612169. The reversal of 612166 is 661216.

612166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153040 + ... + 153043.

It is an arithmetic number, because the mean of its divisors is an integer number (229563).

2⁶¹²¹⁶⁶ is an apocalyptic number.

612166 is a deficient number, since it is larger than the sum of its proper divisors (306086).

612166 is a wasteful number, since it uses less digits than its factorization.

612166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306085.

The product of its digits is 432, while the sum is 22.

The square root of 612166 is about 782.4103782543. The cubic root of 612166 is about 84.9095231046.

The spelling of 612166 in words is "six hundred twelve thousand, one hundred sixty-six".