42133943 has 2 divisors, whose sum is σ = 42133944. Its totient is φ = 42133942.

The previous prime is 42133919. The next prime is 42133951. The reversal of 42133943 is 34933124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42133943 - 2⁶ = 42133879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42133913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21066971 + 21066972.

It is an arithmetic number, because the mean of its divisors is an integer number (21066972).

Almost surely, 2^42133943 is an apocalyptic number.

42133943 is a deficient number, since it is larger than the sum of its proper divisors (1).

42133943 is an equidigital number, since it uses as much as digits as its factorization.

42133943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 29.

The square root of 42133943 is about 6491.0663992906. The cubic root of 42133943 is about 347.9717877997.

The spelling of 42133943 in words is "forty-two million, one hundred thirty-three thousand, nine hundred forty-three".