18069031 has 2 divisors, whose sum is σ = 18069032. Its totient is φ = 18069030.

The previous prime is 18069013. The next prime is 18069041. The reversal of 18069031 is 13096081.

It is a happy number.

Together with previous prime (18069013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18069031 is a prime.

It is a super-2 number, since 2×18069031² = 652979762557922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18069041) 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, 9034515 + 9034516.

It is an arithmetic number, because the mean of its divisors is an integer number (9034516).

Almost surely, 2^18069031 is an apocalyptic number.

18069031 is a deficient number, since it is larger than the sum of its proper divisors (1).

18069031 is an equidigital number, since it uses as much as digits as its factorization.

18069031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 18069031 is about 4250.7682834989. The cubic root of 18069031 is about 262.4087350153.

The spelling of 18069031 in words is "eighteen million, sixty-nine thousand, thirty-one".