42164611 has 2 divisors, whose sum is σ = 42164612. Its totient is φ = 42164610.

The previous prime is 42164597. The next prime is 42164651. The reversal of 42164611 is 11646124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42164611 - 2⁷ = 42164483 is a prime.

It is not a weakly prime, because it can be changed into another prime (42164651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21082305 + 21082306.

It is an arithmetic number, because the mean of its divisors is an integer number (21082306).

Almost surely, 2^42164611 is an apocalyptic number.

42164611 is a deficient number, since it is larger than the sum of its proper divisors (1).

42164611 is an equidigital number, since it uses as much as digits as its factorization.

42164611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 25.

The square root of 42164611 is about 6493.4282932824. The cubic root of 42164611 is about 348.0561933082.

The spelling of 42164611 in words is "forty-two million, one hundred sixty-four thousand, six hundred eleven".