18031063 has 2 divisors, whose sum is σ = 18031064. Its totient is φ = 18031062.

The previous prime is 18031043. The next prime is 18031109. The reversal of 18031063 is 36013081.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18031063 is a prime.

It is a super-3 number, since 3×18031063³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18031043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9015531 + 9015532.

It is an arithmetic number, because the mean of its divisors is an integer number (9015532).

Almost surely, 2^18031063 is an apocalyptic number.

18031063 is a deficient number, since it is larger than the sum of its proper divisors (1).

18031063 is an equidigital number, since it uses as much as digits as its factorization.

18031063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 18031063 is about 4246.2999187528. The cubic root of 18031063 is about 262.2248085052.

The spelling of 18031063 in words is "eighteen million, thirty-one thousand, sixty-three".