2355191 has 2 divisors, whose sum is σ = 2355192. Its totient is φ = 2355190.

The previous prime is 2355181. The next prime is 2355209. The reversal of 2355191 is 1915532.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2355191 - 2¹⁰ = 2354167 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2355191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2355121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1177595 + 1177596.

It is an arithmetic number, because the mean of its divisors is an integer number (1177596).

2^2355191 is an apocalyptic number.

2355191 is a deficient number, since it is larger than the sum of its proper divisors (1).

2355191 is an equidigital number, since it uses as much as digits as its factorization.

2355191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1350, while the sum is 26.

The square root of 2355191 is about 1534.6631552233. The cubic root of 2355191 is about 133.0481104332.

The spelling of 2355191 in words is "two million, three hundred fifty-five thousand, one hundred ninety-one".