2133971 has 8 divisors (see below), whose sum is σ = 2480640. Its totient is φ = 1797768.

The previous prime is 2133949. The next prime is 2133973. The reversal of 2133971 is 1793312.

2133971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2133971 - 2¹⁰ = 2132947 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2133971.

It is not an unprimeable number, because it can be changed into a prime (2133973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2171 + ... + 2996.

It is an arithmetic number, because the mean of its divisors is an integer number (310080).

2^2133971 is an apocalyptic number.

2133971 is a deficient number, since it is larger than the sum of its proper divisors (346669).

2133971 is an equidigital number, since it uses as much as digits as its factorization.

2133971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5233.

The product of its digits is 1134, while the sum is 26.

The square root of 2133971 is about 1460.8117606317. The cubic root of 2133971 is about 128.7447429280.

The spelling of 2133971 in words is "two million, one hundred thirty-three thousand, nine hundred seventy-one".