36806181 has 8 divisors (see below), whose sum is σ = 49533984. Its totient is φ = 24307920.

The previous prime is 36806177. The next prime is 36806201. The reversal of 36806181 is 18160863.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 36806181 - 2² = 36806177 is a prime.

It is a super-2 number, since 2×36806181² = 2709389919609522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36806111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57010 + ... + 57651.

It is an arithmetic number, because the mean of its divisors is an integer number (6191748).

Almost surely, 2^36806181 is an apocalyptic number.

It is an amenable number.

36806181 is a deficient number, since it is larger than the sum of its proper divisors (12727803).

36806181 is a wasteful number, since it uses less digits than its factorization.

36806181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114771.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 36806181 is about 6066.8097876891. The cubic root of 36806181 is about 332.6393212668.

The spelling of 36806181 in words is "thirty-six million, eight hundred six thousand, one hundred eighty-one".