36118181 has 4 divisors (see below), whose sum is σ = 39401664. Its totient is φ = 32834700.

The previous prime is 36118153. The next prime is 36118249. The reversal of 36118181 is 18181163.

36118181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36118181 is a prime.

It is a super-2 number, since 2×36118181² = 2609045997497522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36117181) 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, 1641725 + ... + 1641746.

It is an arithmetic number, because the mean of its divisors is an integer number (9850416).

Almost surely, 2^36118181 is an apocalyptic number.

It is an amenable number.

36118181 is a deficient number, since it is larger than the sum of its proper divisors (3283483).

36118181 is a wasteful number, since it uses less digits than its factorization.

36118181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3283482.

The product of its digits is 1152, while the sum is 29.

The square root of 36118181 is about 6009.8403472971. The cubic root of 36118181 is about 330.5536497323.

The spelling of 36118181 in words is "thirty-six million, one hundred eighteen thousand, one hundred eighty-one".