542466191 has 2 divisors, whose sum is σ = 542466192. Its totient is φ = 542466190.

The previous prime is 542466143. The next prime is 542466193. The reversal of 542466191 is 191664245.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 542466191 - 2¹⁴ = 542449807 is a prime.

It is a Sophie Germain prime.

Together with 542466193, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_28470944 and since 542466191 and 28470944 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 (542466193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271233095 + 271233096.

It is an arithmetic number, because the mean of its divisors is an integer number (271233096).

Almost surely, 2^542466191 is an apocalyptic number.

542466191 is a deficient number, since it is larger than the sum of its proper divisors (1).

542466191 is an equidigital number, since it uses as much as digits as its factorization.

542466191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 38.

The square root of 542466191 is about 23290.9036106374. The cubic root of 542466191 is about 815.5630825924.

The spelling of 542466191 in words is "five hundred forty-two million, four hundred sixty-six thousand, one hundred ninety-one".