36011531 has 2 divisors, whose sum is σ = 36011532. Its totient is φ = 36011530.

The previous prime is 36011527. The next prime is 36011543. The reversal of 36011531 is 13511063.

It is a happy number.

36011531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36011531 - 2² = 36011527 is a prime.

It is a super-2 number, since 2×36011531² = 2593660729927922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (36011431) 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 as a sum of consecutive naturals, namely, 18005765 + 18005766.

It is an arithmetic number, because the mean of its divisors is an integer number (18005766).

Almost surely, 2^36011531 is an apocalyptic number.

36011531 is a deficient number, since it is larger than the sum of its proper divisors (1).

36011531 is an equidigital number, since it uses as much as digits as its factorization.

36011531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 36011531 is about 6000.9608397323. The cubic root of 36011531 is about 330.2279753142.

Adding to 36011531 its reverse (13511063), we get a palindrome (49522594).

The spelling of 36011531 in words is "thirty-six million, eleven thousand, five hundred thirty-one".