36506231 has 4 divisors (see below), whose sum is σ = 36579312. Its totient is φ = 36433152.

The previous prime is 36506227. The next prime is 36506237. The reversal of 36506231 is 13260563.

36506231 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, and also an emirpimes, since its reverse is a distinct semiprime: 13260563 = 2719 ⋅4877.

It is a cyclic number.

It is not a de Polignac number, because 36506231 - 2² = 36506227 is a prime.

It is a super-2 number, since 2×36506231² = 2665409803650722, 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 36506231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36506237) 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, 35786 + ... + 36791.

It is an arithmetic number, because the mean of its divisors is an integer number (9144828).

Almost surely, 2^36506231 is an apocalyptic number.

36506231 is a deficient number, since it is larger than the sum of its proper divisors (73081).

36506231 is an equidigital number, since it uses as much as digits as its factorization.

36506231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73080.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 36506231 is about 6042.0386460201. The cubic root of 36506231 is about 331.7332466803.

Adding to 36506231 its reverse (13260563), we get a palindrome (49766794).

The spelling of 36506231 in words is "thirty-six million, five hundred six thousand, two hundred thirty-one".