42082069 has 2 divisors, whose sum is σ = 42082070. Its totient is φ = 42082068.

The previous prime is 42082057. The next prime is 42082081. The reversal of 42082069 is 96028024.

It is a balanced prime because it is at equal distance from previous prime (42082057) and next prime (42082081).

It can be written as a sum of positive squares in only one way, i.e., 42081169 + 900 = 6487^2 + 30^2 .

It is a cyclic number.

It is not a de Polignac number, because 42082069 - 2⁵ = 42082037 is a prime.

It is a super-2 number, since 2×42082069² = 3541801062641522, which contains 22 as substring.

It is equal to p_2552269 and since 42082069 and 2552269 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42082069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42082049) 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, 21041034 + 21041035.

It is an arithmetic number, because the mean of its divisors is an integer number (21041035).

Almost surely, 2^42082069 is an apocalyptic number.

It is an amenable number.

42082069 is a deficient number, since it is larger than the sum of its proper divisors (1).

42082069 is an equidigital number, since it uses as much as digits as its factorization.

42082069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 42082069 is about 6487.0693691373. The cubic root of 42082069 is about 347.8289251406.

The spelling of 42082069 in words is "forty-two million, eighty-two thousand, sixty-nine".