42305227 has 2 divisors, whose sum is σ = 42305228. Its totient is φ = 42305226.

The previous prime is 42305209. The next prime is 42305233. The reversal of 42305227 is 72250324.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42305227 is a prime.

It is not a weakly prime, because it can be changed into another prime (42305327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21152613 + 21152614.

It is an arithmetic number, because the mean of its divisors is an integer number (21152614).

Almost surely, 2^42305227 is an apocalyptic number.

42305227 is a deficient number, since it is larger than the sum of its proper divisors (1).

42305227 is an equidigital number, since it uses as much as digits as its factorization.

42305227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 42305227 is about 6504.2468434093. The cubic root of 42305227 is about 348.4426782677.

The spelling of 42305227 in words is "forty-two million, three hundred five thousand, two hundred twenty-seven".