2146229 has 4 divisors (see below), whose sum is σ = 2149260. Its totient is φ = 2143200.

The previous prime is 2146219. The next prime is 2146231. The reversal of 2146229 is 9226412.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 180625 + 1965604 = 425^2 + 1402^2 .

It is a cyclic number.

It is not a de Polignac number, because 2146229 - 2⁴ = 2146213 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2146198 and 2146207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2146219) 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 3 ways as a sum of consecutive naturals, for example, 179 + ... + 2079.

It is an arithmetic number, because the mean of its divisors is an integer number (537315).

2^2146229 is an apocalyptic number.

It is an amenable number.

2146229 is a deficient number, since it is larger than the sum of its proper divisors (3031).

2146229 is a wasteful number, since it uses less digits than its factorization.

2146229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3030.

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

The square root of 2146229 is about 1465.0013651871. The cubic root of 2146229 is about 128.9907851519.

The spelling of 2146229 in words is "two million, one hundred forty-six thousand, two hundred twenty-nine".