42967081 has 2 divisors, whose sum is σ = 42967082. Its totient is φ = 42967080.

The previous prime is 42967063. The next prime is 42967097. The reversal of 42967081 is 18076924.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28259856 + 14707225 = 5316^2 + 3835^2 .

It is a cyclic number.

It is not a de Polignac number, because 42967081 - 2⁵ = 42967049 is a prime.

It is a super-2 number, since 2×42967081² = 3692340099321122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42967081.

It is not a weakly prime, because it can be changed into another prime (42967031) 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, 21483540 + 21483541.

It is an arithmetic number, because the mean of its divisors is an integer number (21483541).

Almost surely, 2^42967081 is an apocalyptic number.

It is an amenable number.

42967081 is a deficient number, since it is larger than the sum of its proper divisors (1).

42967081 is an equidigital number, since it uses as much as digits as its factorization.

42967081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 42967081 is about 6554.9279935023. The cubic root of 42967081 is about 350.2503813848.

The spelling of 42967081 in words is "forty-two million, nine hundred sixty-seven thousand, eighty-one".