42205151 has 2 divisors, whose sum is σ = 42205152. Its totient is φ = 42205150.

The previous prime is 42205139. The next prime is 42205153. The reversal of 42205151 is 15150224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42205151 - 2⁶ = 42205087 is a prime.

Together with 42205153, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42205153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21102575 + 21102576.

It is an arithmetic number, because the mean of its divisors is an integer number (21102576).

Almost surely, 2^42205151 is an apocalyptic number.

42205151 is a deficient number, since it is larger than the sum of its proper divisors (1).

42205151 is an equidigital number, since it uses as much as digits as its factorization.

42205151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 42205151 is about 6496.5491609007. The cubic root of 42205151 is about 348.1677060830.

Adding to 42205151 its reverse (15150224), we get a palindrome (57355375).

The spelling of 42205151 in words is "forty-two million, two hundred five thousand, one hundred fifty-one".