42491303 has 2 divisors, whose sum is σ = 42491304. Its totient is φ = 42491302.

The previous prime is 42491261. The next prime is 42491341. The reversal of 42491303 is 30319424.

42491303 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 42491303 - 2¹⁶ = 42425767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42491203) 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, 21245651 + 21245652.

It is an arithmetic number, because the mean of its divisors is an integer number (21245652).

Almost surely, 2^42491303 is an apocalyptic number.

42491303 is a deficient number, since it is larger than the sum of its proper divisors (1).

42491303 is an equidigital number, since it uses as much as digits as its factorization.

42491303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 42491303 is about 6518.5353416239. The cubic root of 42491303 is about 348.9527964116.

The spelling of 42491303 in words is "forty-two million, four hundred ninety-one thousand, three hundred three".