36581113 has 2 divisors, whose sum is σ = 36581114. Its totient is φ = 36581112.

The previous prime is 36581071. The next prime is 36581119. The reversal of 36581113 is 31118563.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36578304 + 2809 = 6048^2 + 53^2 .

It is a cyclic number.

It is not a de Polignac number, because 36581113 - 2⁹ = 36580601 is a prime.

It is not a weakly prime, because it can be changed into another prime (36581119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18290556 + 18290557.

It is an arithmetic number, because the mean of its divisors is an integer number (18290557).

Almost surely, 2^36581113 is an apocalyptic number.

It is an amenable number.

36581113 is a deficient number, since it is larger than the sum of its proper divisors (1).

36581113 is an equidigital number, since it uses as much as digits as its factorization.

36581113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 28.

The square root of 36581113 is about 6048.2322210709. The cubic root of 36581113 is about 331.9599101203.

Adding to 36581113 its reverse (31118563), we get a palindrome (67699676).

The spelling of 36581113 in words is "thirty-six million, five hundred eighty-one thousand, one hundred thirteen".