36091081 has 8 divisors (see below), whose sum is σ = 39269384. Its totient is φ = 32970240.

The previous prime is 36091079. The next prime is 36091093. The reversal of 36091081 is 18019063.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1092025 + 34999056 = 1045^2 + 5916^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 36091081 - 2¹ = 36091079 is a prime.

It is a super-2 number, since 2×36091081² = 2605132255497122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36091381) 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, 13050 + ... + 15571.

It is an arithmetic number, because the mean of its divisors is an integer number (4908673).

Almost surely, 2^36091081 is an apocalyptic number.

It is an amenable number.

36091081 is a deficient number, since it is larger than the sum of its proper divisors (3178303).

36091081 is a wasteful number, since it uses less digits than its factorization.

36091081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28731.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 36091081 is about 6007.5852886164. The cubic root of 36091081 is about 330.4709559658.

The spelling of 36091081 in words is "thirty-six million, ninety-one thousand, eighty-one".