2162172133 has 4 divisors (see below), whose sum is σ = 2358733248. Its totient is φ = 1965611020.

The previous prime is 2162172113. The next prime is 2162172151. The reversal of 2162172133 is 3312712612.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2162172133 - 2⁹ = 2162171621 is a prime.

It is a super-3 number, since 3×2162172133³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2162172113) 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, 98280541 + ... + 98280562.

It is an arithmetic number, because the mean of its divisors is an integer number (589683312).

Almost surely, 2^2162172133 is an apocalyptic number.

It is an amenable number.

2162172133 is a deficient number, since it is larger than the sum of its proper divisors (196561115).

2162172133 is a wasteful number, since it uses less digits than its factorization.

2162172133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196561114.

The product of its digits is 3024, while the sum is 28.

The square root of 2162172133 is about 46499.1627128919. The cubic root of 2162172133 is about 1293.0939761389.

Adding to 2162172133 its reverse (3312712612), we get a palindrome (5474884745).

The spelling of 2162172133 in words is "two billion, one hundred sixty-two million, one hundred seventy-two thousand, one hundred thirty-three".