2134191 has 4 divisors (see below), whose sum is σ = 2845592. Its totient is φ = 1422792.

The previous prime is 2134183. The next prime is 2134201. The reversal of 2134191 is 1914312.

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

It is not a de Polignac number, because 2134191 - 2³ = 2134183 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2134141) 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, 355696 + ... + 355701.

It is an arithmetic number, because the mean of its divisors is an integer number (711398).

2^2134191 is an apocalyptic number.

2134191 is a deficient number, since it is larger than the sum of its proper divisors (711401).

2134191 is an equidigital number, since it uses as much as digits as its factorization.

2134191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711400.

The product of its digits is 216, while the sum is 21.

The square root of 2134191 is about 1460.8870592897. The cubic root of 2134191 is about 128.7491670540.

The spelling of 2134191 in words is "two million, one hundred thirty-four thousand, one hundred ninety-one".