18146071 has 2 divisors, whose sum is σ = 18146072. Its totient is φ = 18146070.

The previous prime is 18146059. The next prime is 18146101. The reversal of 18146071 is 17064181.

It is a weak prime.

It is an emirp because it is prime and its reverse (17064181) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18146071 - 2²³ = 9757463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18146971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9073035 + 9073036.

It is an arithmetic number, because the mean of its divisors is an integer number (9073036).

Almost surely, 2^18146071 is an apocalyptic number.

18146071 is a deficient number, since it is larger than the sum of its proper divisors (1).

18146071 is an equidigital number, since it uses as much as digits as its factorization.

18146071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 18146071 is about 4259.8205361259. The cubic root of 18146071 is about 262.7811457908.

The spelling of 18146071 in words is "eighteen million, one hundred forty-six thousand, seventy-one".