42100207 has 2 divisors, whose sum is σ = 42100208. Its totient is φ = 42100206.

The previous prime is 42100193. The next prime is 42100213. The reversal of 42100207 is 70200124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42100207 - 2¹¹ = 42098159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42100307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21050103 + 21050104.

It is an arithmetic number, because the mean of its divisors is an integer number (21050104).

Almost surely, 2^42100207 is an apocalyptic number.

42100207 is a deficient number, since it is larger than the sum of its proper divisors (1).

42100207 is an equidigital number, since it uses as much as digits as its factorization.

42100207 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 42100207 is about 6488.4672304020. The cubic root of 42100207 is about 347.8788911158.

The spelling of 42100207 in words is "forty-two million, one hundred thousand, two hundred seven".