42361871 has 2 divisors, whose sum is σ = 42361872. Its totient is φ = 42361870.

The previous prime is 42361867. The next prime is 42361873. The reversal of 42361871 is 17816324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42361871 - 2² = 42361867 is a prime.

It is a super-2 number, since 2×42361871² = 3589056229241282, which contains 22 as substring.

Together with 42361873, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42361873) 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, 21180935 + 21180936.

It is an arithmetic number, because the mean of its divisors is an integer number (21180936).

Almost surely, 2^42361871 is an apocalyptic number.

42361871 is a deficient number, since it is larger than the sum of its proper divisors (1).

42361871 is an equidigital number, since it uses as much as digits as its factorization.

42361871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 32.

The square root of 42361871 is about 6508.5997726085. The cubic root of 42361871 is about 348.5981230836.

The spelling of 42361871 in words is "forty-two million, three hundred sixty-one thousand, eight hundred seventy-one".