42045011 has 2 divisors, whose sum is σ = 42045012. Its totient is φ = 42045010.

The previous prime is 42044971. The next prime is 42045019. The reversal of 42045011 is 11054024.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42045011 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42045019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21022505 + 21022506.

It is an arithmetic number, because the mean of its divisors is an integer number (21022506).

Almost surely, 2^42045011 is an apocalyptic number.

42045011 is a deficient number, since it is larger than the sum of its proper divisors (1).

42045011 is an equidigital number, since it uses as much as digits as its factorization.

42045011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 42045011 is about 6484.2124425407. The cubic root of 42045011 is about 347.7267943113.

Adding to 42045011 its reverse (11054024), we get a palindrome (53099035).

The spelling of 42045011 in words is "forty-two million, forty-five thousand, eleven".