42237523 has 2 divisors, whose sum is σ = 42237524. Its totient is φ = 42237522.

The previous prime is 42237521. The next prime is 42237557. The reversal of 42237523 is 32573224.

42237523 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 42237523 - 2¹ = 42237521 is a prime.

Together with 42237521, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 42237491 and 42237500.

It is not a weakly prime, because it can be changed into another prime (42237521) 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, 21118761 + 21118762.

It is an arithmetic number, because the mean of its divisors is an integer number (21118762).

Almost surely, 2^42237523 is an apocalyptic number.

42237523 is a deficient number, since it is larger than the sum of its proper divisors (1).

42237523 is an equidigital number, since it uses as much as digits as its factorization.

42237523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 28.

The square root of 42237523 is about 6499.0401599005. The cubic root of 42237523 is about 348.2566999957.

The spelling of 42237523 in words is "forty-two million, two hundred thirty-seven thousand, five hundred twenty-three".