2146091 has 2 divisors, whose sum is σ = 2146092. Its totient is φ = 2146090.

The previous prime is 2146051. The next prime is 2146093. The reversal of 2146091 is 1906412.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2146091 - 2¹⁰ = 2145067 is a prime.

Together with 2146093, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2146093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1073045 + 1073046.

It is an arithmetic number, because the mean of its divisors is an integer number (1073046).

2^2146091 is an apocalyptic number.

2146091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2146091 is an equidigital number, since it uses as much as digits as its factorization.

2146091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 2146091 is about 1464.9542654977. The cubic root of 2146091 is about 128.9880204407.

The spelling of 2146091 in words is "two million, one hundred forty-six thousand, ninety-one".