36896181 has 32 divisors (see below), whose sum is σ = 57953280. Its totient is φ = 20445696.

The previous prime is 36896161. The next prime is 36896183. The reversal of 36896181 is 18169863.

It is not a de Polignac number, because 36896181 - 2²¹ = 34799029 is a prime.

It is a super-2 number, since 2×36896181² = 2722656344769522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36896183) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120030 + ... + 120336.

It is an arithmetic number, because the mean of its divisors is an integer number (1811040).

Almost surely, 2^36896181 is an apocalyptic number.

It is an amenable number.

36896181 is a deficient number, since it is larger than the sum of its proper divisors (21057099).

36896181 is a wasteful number, since it uses less digits than its factorization.

36896181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473.

The product of its digits is 62208, while the sum is 42.

The square root of 36896181 is about 6074.2226663171. Note that the first 3 decimals coincide. The cubic root of 36896181 is about 332.9102283961.

It can be divided in two parts, 3689 and 6181, that added together give a triangular number (9870 = T₁₄₀).

The spelling of 36896181 in words is "thirty-six million, eight hundred ninety-six thousand, one hundred eighty-one".