42751207 has 2 divisors, whose sum is σ = 42751208. Its totient is φ = 42751206.

The previous prime is 42751199. The next prime is 42751211. The reversal of 42751207 is 70215724.

42751207 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42751207 - 2³ = 42751199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42751297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21375603 + 21375604.

It is an arithmetic number, because the mean of its divisors is an integer number (21375604).

Almost surely, 2^42751207 is an apocalyptic number.

42751207 is a deficient number, since it is larger than the sum of its proper divisors (1).

42751207 is an equidigital number, since it uses as much as digits as its factorization.

42751207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 42751207 is about 6538.4407162564. The cubic root of 42751207 is about 349.6628235809.

The spelling of 42751207 in words is "forty-two million, seven hundred fifty-one thousand, two hundred seven".