42859111 has 2 divisors, whose sum is σ = 42859112. Its totient is φ = 42859110.

The previous prime is 42859099. The next prime is 42859133. The reversal of 42859111 is 11195824.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42859111 - 2¹⁷ = 42728039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42859181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21429555 + 21429556.

It is an arithmetic number, because the mean of its divisors is an integer number (21429556).

Almost surely, 2^42859111 is an apocalyptic number.

42859111 is a deficient number, since it is larger than the sum of its proper divisors (1).

42859111 is an equidigital number, since it uses as much as digits as its factorization.

42859111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 31.

The square root of 42859111 is about 6546.6870247477. The cubic root of 42859111 is about 349.9567592839.

The spelling of 42859111 in words is "forty-two million, eight hundred fifty-nine thousand, one hundred eleven".