18148069 has 2 divisors, whose sum is σ = 18148070. Its totient is φ = 18148068.

The previous prime is 18148037. The next prime is 18148073. The reversal of 18148069 is 96084181.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11189025 + 6959044 = 3345^2 + 2638^2 .

It is a cyclic number.

It is not a de Polignac number, because 18148069 - 2⁵ = 18148037 is a prime.

It is a super-2 number, since 2×18148069² = 658704816857522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18148769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9074034 + 9074035.

It is an arithmetic number, because the mean of its divisors is an integer number (9074035).

Almost surely, 2^18148069 is an apocalyptic number.

It is an amenable number.

18148069 is a deficient number, since it is larger than the sum of its proper divisors (1).

18148069 is an equidigital number, since it uses as much as digits as its factorization.

18148069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 18148069 is about 4260.0550465927. The cubic root of 18148069 is about 262.7907900725.

The spelling of 18148069 in words is "eighteen million, one hundred forty-eight thousand, sixty-nine".