18119207 has 2 divisors, whose sum is σ = 18119208. Its totient is φ = 18119206.

The previous prime is 18119201. The next prime is 18119219. The reversal of 18119207 is 70291181.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18119207 - 2⁴ = 18119191 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18119207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18119201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9059603 + 9059604.

It is an arithmetic number, because the mean of its divisors is an integer number (9059604).

Almost surely, 2^18119207 is an apocalyptic number.

18119207 is a deficient number, since it is larger than the sum of its proper divisors (1).

18119207 is an equidigital number, since it uses as much as digits as its factorization.

18119207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 29.

The square root of 18119207 is about 4256.6661837640. Note that the first 3 decimals coincide. The cubic root of 18119207 is about 262.6514053235.

The spelling of 18119207 in words is "eighteen million, one hundred nineteen thousand, two hundred seven".