2133128 has 8 divisors (see below), whose sum is σ = 3999630. Its totient is φ = 1066560.

The previous prime is 2133121. The next prime is 2133137. The reversal of 2133128 is 8213312.

It can be written as a sum of positive squares in only one way, i.e., 1582564 + 550564 = 1258^2 + 742^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2133121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133313 + ... + 133328.

2^2133128 is an apocalyptic number.

It is an amenable number.

2133128 is a deficient number, since it is larger than the sum of its proper divisors (1866502).

2133128 is a wasteful number, since it uses less digits than its factorization.

2133128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266647 (or 266643 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 2133128 is about 1460.5231939274. The cubic root of 2133128 is about 128.7277876659.

It can be divided in two parts, 2 and 133128, that multiplied together give a square (266256 = 516²).

The spelling of 2133128 in words is "two million, one hundred thirty-three thousand, one hundred twenty-eight".