42265243 has 2 divisors, whose sum is σ = 42265244. Its totient is φ = 42265242.

The previous prime is 42265241. The next prime is 42265271. The reversal of 42265243 is 34256224.

42265243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (42265271) can be obtained adding 42265243 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42265243 - 2¹ = 42265241 is a prime.

Together with 42265241, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (42265241) 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, 21132621 + 21132622.

It is an arithmetic number, because the mean of its divisors is an integer number (21132622).

Almost surely, 2^42265243 is an apocalyptic number.

42265243 is a deficient number, since it is larger than the sum of its proper divisors (1).

42265243 is an equidigital number, since it uses as much as digits as its factorization.

42265243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 28.

The square root of 42265243 is about 6501.1724327232. The cubic root of 42265243 is about 348.3328689559.

The spelling of 42265243 in words is "forty-two million, two hundred sixty-five thousand, two hundred forty-three".