18105151 has 2 divisors, whose sum is σ = 18105152. Its totient is φ = 18105150.

The previous prime is 18105121. The next prime is 18105161. The reversal of 18105151 is 15150181.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18105151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18105121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9052575 + 9052576.

It is an arithmetic number, because the mean of its divisors is an integer number (9052576).

Almost surely, 2^18105151 is an apocalyptic number.

18105151 is a deficient number, since it is larger than the sum of its proper divisors (1).

18105151 is an equidigital number, since it uses as much as digits as its factorization.

18105151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 200, while the sum is 22.

The square root of 18105151 is about 4255.0148060847. The cubic root of 18105151 is about 262.5834703561.

The spelling of 18105151 in words is "eighteen million, one hundred five thousand, one hundred fifty-one".