36875281 has 4 divisors (see below), whose sum is σ = 37289700. Its totient is φ = 36460864.

The previous prime is 36875243. The next prime is 36875287. The reversal of 36875281 is 18257863.

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 16769025 + 20106256 = 4095^2 + 4484^2 .

It is a cyclic number.

It is not a de Polignac number, because 36875281 - 2¹¹ = 36873233 is a prime.

It is a super-2 number, since 2×36875281² = 2719572697657922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36875287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207076 + ... + 207253.

It is an arithmetic number, because the mean of its divisors is an integer number (9322425).

Almost surely, 2^36875281 is an apocalyptic number.

It is an amenable number.

36875281 is a deficient number, since it is larger than the sum of its proper divisors (414419).

36875281 is an equidigital number, since it uses as much as digits as its factorization.

36875281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414418.

The product of its digits is 80640, while the sum is 40.

The square root of 36875281 is about 6072.5020378753. The cubic root of 36875281 is about 332.8473570477.

The spelling of 36875281 in words is "thirty-six million, eight hundred seventy-five thousand, two hundred eighty-one".