18053131 has 2 divisors, whose sum is σ = 18053132. Its totient is φ = 18053130.

The previous prime is 18053117. The next prime is 18053141. The reversal of 18053131 is 13135081.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18053131 - 2¹⁹ = 17528843 is a prime.

It is a super-2 number, since 2×18053131² = 651831077806322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (18053141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9026565 + 9026566.

It is an arithmetic number, because the mean of its divisors is an integer number (9026566).

Almost surely, 2^18053131 is an apocalyptic number.

18053131 is a deficient number, since it is larger than the sum of its proper divisors (1).

18053131 is an equidigital number, since it uses as much as digits as its factorization.

18053131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 18053131 is about 4248.8976217367. The cubic root of 18053131 is about 262.3317428161.

The spelling of 18053131 in words is "eighteen million, fifty-three thousand, one hundred thirty-one".