36775181 has 2 divisors, whose sum is σ = 36775182. Its totient is φ = 36775180.

The previous prime is 36775171. The next prime is 36775201. The reversal of 36775181 is 18157763.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36409156 + 366025 = 6034^2 + 605^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36775181 is a prime.

It is a super-2 number, since 2×36775181² = 2704827875165522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36775171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18387590 + 18387591.

It is an arithmetic number, because the mean of its divisors is an integer number (18387591).

Almost surely, 2^36775181 is an apocalyptic number.

It is an amenable number.

36775181 is a deficient number, since it is larger than the sum of its proper divisors (1).

36775181 is an equidigital number, since it uses as much as digits as its factorization.

36775181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 38.

The square root of 36775181 is about 6064.2543647179. The cubic root of 36775181 is about 332.5459065642.

The spelling of 36775181 in words is "thirty-six million, seven hundred seventy-five thousand, one hundred eighty-one".