42064111 has 2 divisors, whose sum is σ = 42064112. Its totient is φ = 42064110.

The previous prime is 42064063. The next prime is 42064129. The reversal of 42064111 is 11146024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42064111 - 2¹³ = 42055919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42064411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21032055 + 21032056.

It is an arithmetic number, because the mean of its divisors is an integer number (21032056).

Almost surely, 2^42064111 is an apocalyptic number.

42064111 is a deficient number, since it is larger than the sum of its proper divisors (1).

42064111 is an equidigital number, since it uses as much as digits as its factorization.

42064111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 42064111 is about 6485.6850833200. The cubic root of 42064111 is about 347.7794408772.

The spelling of 42064111 in words is "forty-two million, sixty-four thousand, one hundred eleven".