42023851 has 2 divisors, whose sum is σ = 42023852. Its totient is φ = 42023850.

The previous prime is 42023833. The next prime is 42023873. The reversal of 42023851 is 15832024.

42023851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42023851 - 2⁵ = 42023819 is a prime.

It is not a weakly prime, because it can be changed into another prime (42023251) 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, 21011925 + 21011926.

It is an arithmetic number, because the mean of its divisors is an integer number (21011926).

Almost surely, 2^42023851 is an apocalyptic number.

42023851 is a deficient number, since it is larger than the sum of its proper divisors (1).

42023851 is an equidigital number, since it uses as much as digits as its factorization.

42023851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 42023851 is about 6482.5805818362. The cubic root of 42023851 is about 347.6684510146.

Adding to 42023851 its reverse (15832024), we get a palindrome (57855875).

The spelling of 42023851 in words is "forty-two million, twenty-three thousand, eight hundred fifty-one".