36791281 has 4 divisors (see below), whose sum is σ = 38955492. Its totient is φ = 34627072.

The previous prime is 36791257. The next prime is 36791297. The reversal of 36791281 is 18219763.

36791281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29062881 + 7728400 = 5391^2 + 2780^2 .

It is a cyclic number.

It is not a de Polignac number, because 36791281 - 2²¹ = 34694129 is a prime.

It is a super-2 number, since 2×36791281² = 2707196715241922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 36791281.

It is not an unprimeable number, because it can be changed into a prime (36791081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1082080 + ... + 1082113.

It is an arithmetic number, because the mean of its divisors is an integer number (9738873).

Almost surely, 2^36791281 is an apocalyptic number.

It is an amenable number.

36791281 is a deficient number, since it is larger than the sum of its proper divisors (2164211).

36791281 is a wasteful number, since it uses less digits than its factorization.

36791281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2164210.

The product of its digits is 18144, while the sum is 37.

The square root of 36791281 is about 6065.5816703759. The cubic root of 36791281 is about 332.5944284914.

The spelling of 36791281 in words is "thirty-six million, seven hundred ninety-one thousand, two hundred eighty-one".