2128229 has 8 divisors (see below), whose sum is σ = 2187360. Its totient is φ = 2070000.

The previous prime is 2128201. The next prime is 2128241. The reversal of 2128229 is 9228212.

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

It is a cyclic number.

It is not a de Polignac number, because 2128229 - 2⁸ = 2127973 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2128198 and 2128207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2128279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8354 + ... + 8604.

It is an arithmetic number, because the mean of its divisors is an integer number (273420).

2^2128229 is an apocalyptic number.

It is an amenable number.

2128229 is a deficient number, since it is larger than the sum of its proper divisors (59131).

2128229 is a wasteful number, since it uses less digits than its factorization.

2128229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451.

The product of its digits is 1152, while the sum is 26.

The square root of 2128229 is about 1458.8450911594. The cubic root of 2128229 is about 128.6291655440.

The spelling of 2128229 in words is "two million, one hundred twenty-eight thousand, two hundred twenty-nine".