18035131 has 4 divisors (see below), whose sum is σ = 18050472. Its totient is φ = 18019792.

The previous prime is 18035107. The next prime is 18035141. The reversal of 18035131 is 13153081.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18035131 - 2⁹ = 18034619 is a prime.

It is a super-2 number, since 2×18035131² = 650531900374322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18035141) 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 in 3 ways as a sum of consecutive naturals, for example, 5746 + ... + 8311.

It is an arithmetic number, because the mean of its divisors is an integer number (4512618).

Almost surely, 2^18035131 is an apocalyptic number.

18035131 is a deficient number, since it is larger than the sum of its proper divisors (15341).

18035131 is a wasteful number, since it uses less digits than its factorization.

18035131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15340.

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

The square root of 18035131 is about 4246.7788969995. The cubic root of 18035131 is about 262.2445272596.

The spelling of 18035131 in words is "eighteen million, thirty-five thousand, one hundred thirty-one".