581052191 has 2 divisors, whose sum is σ = 581052192. Its totient is φ = 581052190.

The previous prime is 581052179. The next prime is 581052217. The reversal of 581052191 is 191250185.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 581052191 - 2²² = 576857887 is a prime.

It is a Chen prime.

It is equal to p_30386228 and since 581052191 and 30386228 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (581052491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 290526095 + 290526096.

It is an arithmetic number, because the mean of its divisors is an integer number (290526096).

Almost surely, 2^581052191 is an apocalyptic number.

581052191 is a deficient number, since it is larger than the sum of its proper divisors (1).

581052191 is an equidigital number, since it uses as much as digits as its factorization.

581052191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 32.

The square root of 581052191 is about 24105.0241858414. The cubic root of 581052191 is about 834.4590857685.

The spelling of 581052191 in words is "five hundred eighty-one million, fifty-two thousand, one hundred ninety-one".