42522943 has 2 divisors, whose sum is σ = 42522944. Its totient is φ = 42522942.

The previous prime is 42522937. The next prime is 42522947. The reversal of 42522943 is 34922524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42522943 - 2⁵ = 42522911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42522947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21261471 + 21261472.

It is an arithmetic number, because the mean of its divisors is an integer number (21261472).

Almost surely, 2^42522943 is an apocalyptic number.

42522943 is a deficient number, since it is larger than the sum of its proper divisors (1).

42522943 is an equidigital number, since it uses as much as digits as its factorization.

42522943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 31.

The square root of 42522943 is about 6520.9618155606. The cubic root of 42522943 is about 349.0393876778.

The spelling of 42522943 in words is "forty-two million, five hundred twenty-two thousand, nine hundred forty-three".