42100027 has 2 divisors, whose sum is σ = 42100028. Its totient is φ = 42100026.

The previous prime is 42100013. The next prime is 42100031. The reversal of 42100027 is 72000124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42100027 - 2¹⁹ = 41575739 is a prime.

It is not a weakly prime, because it can be changed into another prime (42100087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21050013 + 21050014.

It is an arithmetic number, because the mean of its divisors is an integer number (21050014).

Almost surely, 2^42100027 is an apocalyptic number.

42100027 is a deficient number, since it is larger than the sum of its proper divisors (1).

42100027 is an equidigital number, since it uses as much as digits as its factorization.

42100027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 42100027 is about 6488.4533596228. The cubic root of 42100027 is about 347.8783953281.

The spelling of 42100027 in words is "forty-two million, one hundred thousand, twenty-seven".