19418107 has 2 divisors, whose sum is σ = 19418108. Its totient is φ = 19418106.

The previous prime is 19418101. The next prime is 19418111. The reversal of 19418107 is 70181491.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19418107 is a prime.

It is not a weakly prime, because it can be changed into another prime (19418101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9709053 + 9709054.

It is an arithmetic number, because the mean of its divisors is an integer number (9709054).

Almost surely, 2^19418107 is an apocalyptic number.

19418107 is a deficient number, since it is larger than the sum of its proper divisors (1).

19418107 is an equidigital number, since it uses as much as digits as its factorization.

19418107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 19418107 is about 4406.5981209999. The cubic root of 19418107 is about 268.7833092300.

Adding to 19418107 its reverse (70181491), we get a palindrome (89599598).

The spelling of 19418107 in words is "nineteen million, four hundred eighteen thousand, one hundred seven".