42091183 has 2 divisors, whose sum is σ = 42091184. Its totient is φ = 42091182.

The previous prime is 42091157. The next prime is 42091193. The reversal of 42091183 is 38119024.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42091183 - 2¹⁷ = 41960111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42091193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21045591 + 21045592.

It is an arithmetic number, because the mean of its divisors is an integer number (21045592).

Almost surely, 2^42091183 is an apocalyptic number.

42091183 is a deficient number, since it is larger than the sum of its proper divisors (1).

42091183 is an equidigital number, since it uses as much as digits as its factorization.

42091183 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 42091183 is about 6487.7718054814. The cubic root of 42091183 is about 347.8540338869.

The spelling of 42091183 in words is "forty-two million, ninety-one thousand, one hundred eighty-three".