42918107 has 2 divisors, whose sum is σ = 42918108. Its totient is φ = 42918106.

The previous prime is 42918079. The next prime is 42918133. The reversal of 42918107 is 70181924.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42918107 - 2⁸ = 42917851 is a prime.

It is not a weakly prime, because it can be changed into another prime (42918137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21459053 + 21459054.

It is an arithmetic number, because the mean of its divisors is an integer number (21459054).

Almost surely, 2^42918107 is an apocalyptic number.

42918107 is a deficient number, since it is larger than the sum of its proper divisors (1).

42918107 is an equidigital number, since it uses as much as digits as its factorization.

42918107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 42918107 is about 6551.1912657165. The cubic root of 42918107 is about 350.1172586702.

The spelling of 42918107 in words is "forty-two million, nine hundred eighteen thousand, one hundred seven".