42235903 has 2 divisors, whose sum is σ = 42235904. Its totient is φ = 42235902.

The previous prime is 42235901. The next prime is 42235937. The reversal of 42235903 is 30953224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42235903 - 2¹ = 42235901 is a prime.

Together with 42235901, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42235901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21117951 + 21117952.

It is an arithmetic number, because the mean of its divisors is an integer number (21117952).

Almost surely, 2^42235903 is an apocalyptic number.

42235903 is a deficient number, since it is larger than the sum of its proper divisors (1).

42235903 is an equidigital number, since it uses as much as digits as its factorization.

42235903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 42235903 is about 6498.9155249164. The cubic root of 42235903 is about 348.2522475323.

It can be divided in two parts, 42 and 235903, that multiplied together give a triangular number (9907926 = T₄₄₅₁).

The spelling of 42235903 in words is "forty-two million, two hundred thirty-five thousand, nine hundred three".