2135228 has 12 divisors (see below), whose sum is σ = 3899280. Its totient is φ = 1021152.

The previous prime is 2135227. The next prime is 2135267. The reversal of 2135228 is 8225312.

It is a super-2 number, since 2×2135228² = 9118397223968, which contains 22 as substring.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2135227) 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, 11513 + ... + 11696.

It is an arithmetic number, because the mean of its divisors is an integer number (324940).

2^2135228 is an apocalyptic number.

It is an amenable number.

2135228 is a deficient number, since it is larger than the sum of its proper divisors (1764052).

2135228 is a wasteful number, since it uses less digits than its factorization.

2135228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23236 (or 23234 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 2135228 is about 1461.2419375312. The cubic root of 2135228 is about 128.7700166824.

The spelling of 2135228 in words is "two million, one hundred thirty-five thousand, two hundred twenty-eight".