42225347 has 2 divisors, whose sum is σ = 42225348. Its totient is φ = 42225346.

The previous prime is 42225329. The next prime is 42225349. The reversal of 42225347 is 74352224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42225347 - 2⁶ = 42225283 is a prime.

Together with 42225349, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42225349) 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, 21112673 + 21112674.

It is an arithmetic number, because the mean of its divisors is an integer number (21112674).

Almost surely, 2^42225347 is an apocalyptic number.

42225347 is a deficient number, since it is larger than the sum of its proper divisors (1).

42225347 is an equidigital number, since it uses as much as digits as its factorization.

42225347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 29.

The square root of 42225347 is about 6498.1033386674. The cubic root of 42225347 is about 348.2232322731.

The spelling of 42225347 in words is "forty-two million, two hundred twenty-five thousand, three hundred forty-seven".