2126281933 has 4 divisors (see below), whose sum is σ = 2126504380. Its totient is φ = 2126059488.

The previous prime is 2126281921. The next prime is 2126281939. The reversal of 2126281933 is 3391826212.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1909515204 + 216766729 = 43698^2 + 14723^2 .

It is a cyclic number.

It is not a de Polignac number, because 2126281933 - 2⁵ = 2126281901 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2126281892 and 2126281901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126281939) 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, 96210 + ... + 116227.

It is an arithmetic number, because the mean of its divisors is an integer number (531626095).

Almost surely, 2^2126281933 is an apocalyptic number.

It is an amenable number.

2126281933 is a deficient number, since it is larger than the sum of its proper divisors (222447).

2126281933 is a wasteful number, since it uses less digits than its factorization.

2126281933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222446.

The product of its digits is 31104, while the sum is 37.

The square root of 2126281933 is about 46111.6247057073. The cubic root of 2126281933 is about 1285.8992696914.

The spelling of 2126281933 in words is "two billion, one hundred twenty-six million, two hundred eighty-one thousand, nine hundred thirty-three".