42014209 has 2 divisors, whose sum is σ = 42014210. Its totient is φ = 42014208.

The previous prime is 42014197. The next prime is 42014227. The reversal of 42014209 is 90241024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40640625 + 1373584 = 6375^2 + 1172^2 .

It is a cyclic number.

It is not a de Polignac number, because 42014209 - 2¹⁷ = 41883137 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42014209.

It is not a weakly prime, because it can be changed into another prime (42014249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21007104 + 21007105.

It is an arithmetic number, because the mean of its divisors is an integer number (21007105).

Almost surely, 2^42014209 is an apocalyptic number.

It is an amenable number.

42014209 is a deficient number, since it is larger than the sum of its proper divisors (1).

42014209 is an equidigital number, since it uses as much as digits as its factorization.

42014209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 42014209 is about 6481.8368538555. The cubic root of 42014209 is about 347.6418591663.

The spelling of 42014209 in words is "forty-two million, fourteen thousand, two hundred nine".