18119071 has 2 divisors, whose sum is σ = 18119072. Its totient is φ = 18119070.

The previous prime is 18119069. The next prime is 18119081. The reversal of 18119071 is 17091181.

It is a weak prime.

It is an emirp because it is prime and its reverse (17091181) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18119071 - 2¹ = 18119069 is a prime.

Together with 18119069, it forms a pair of twin primes.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18119041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9059535 + 9059536.

It is an arithmetic number, because the mean of its divisors is an integer number (9059536).

Almost surely, 2^18119071 is an apocalyptic number.

18119071 is a deficient number, since it is larger than the sum of its proper divisors (1).

18119071 is an equidigital number, since it uses as much as digits as its factorization.

18119071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 28.

The square root of 18119071 is about 4256.6502087909. The cubic root of 18119071 is about 262.6507481814.

The spelling of 18119071 in words is "eighteen million, one hundred nineteen thousand, seventy-one".