36083581 has 2 divisors, whose sum is σ = 36083582. Its totient is φ = 36083580.

The previous prime is 36083561. The next prime is 36083591. The reversal of 36083581 is 18538063.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32103556 + 3980025 = 5666^2 + 1995^2 .

It is a cyclic number.

It is not a de Polignac number, because 36083581 - 2²¹ = 33986429 is a prime.

It is a super-2 number, since 2×36083581² = 2604049635567122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36083501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18041790 + 18041791.

It is an arithmetic number, because the mean of its divisors is an integer number (18041791).

Almost surely, 2^36083581 is an apocalyptic number.

It is an amenable number.

36083581 is a deficient number, since it is larger than the sum of its proper divisors (1).

36083581 is an equidigital number, since it uses as much as digits as its factorization.

36083581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 36083581 is about 6006.9610453207. The cubic root of 36083581 is about 330.4480629240.

The spelling of 36083581 in words is "thirty-six million, eighty-three thousand, five hundred eighty-one".