42813571 has 2 divisors, whose sum is σ = 42813572. Its totient is φ = 42813570.

The previous prime is 42813523. The next prime is 42813581. The reversal of 42813571 is 17531824.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42813571 - 2⁷ = 42813443 is a prime.

It is not a weakly prime, because it can be changed into another prime (42813581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21406785 + 21406786.

It is an arithmetic number, because the mean of its divisors is an integer number (21406786).

Almost surely, 2^42813571 is an apocalyptic number.

42813571 is a deficient number, since it is larger than the sum of its proper divisors (1).

42813571 is an equidigital number, since it uses as much as digits as its factorization.

42813571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 31.

The square root of 42813571 is about 6543.2080052525. The cubic root of 42813571 is about 349.8327663653.

The spelling of 42813571 in words is "forty-two million, eight hundred thirteen thousand, five hundred seventy-one".