2135191 has 2 divisors, whose sum is σ = 2135192. Its totient is φ = 2135190.

The previous prime is 2135173. The next prime is 2135197. The reversal of 2135191 is 1915312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2135191 - 2²¹ = 38039 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2135197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067595 + 1067596.

It is an arithmetic number, because the mean of its divisors is an integer number (1067596).

2^2135191 is an apocalyptic number.

2135191 is a deficient number, since it is larger than the sum of its proper divisors (1).

2135191 is an equidigital number, since it uses as much as digits as its factorization.

2135191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 270, while the sum is 22.

The square root of 2135191 is about 1461.2292770130. The cubic root of 2135191 is about 128.7692728870.

The spelling of 2135191 in words is "two million, one hundred thirty-five thousand, one hundred ninety-one".