36323561 has 2 divisors, whose sum is σ = 36323562. Its totient is φ = 36323560.

The previous prime is 36323533. The next prime is 36323563. The reversal of 36323561 is 16532363.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34987225 + 1336336 = 5915^2 + 1156^2 .

It is an emirp because it is prime and its reverse (16532363) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36323561 - 2²² = 32129257 is a prime.

It is a Sophie Germain prime.

Together with 36323563, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (36323563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18161780 + 18161781.

It is an arithmetic number, because the mean of its divisors is an integer number (18161781).

Almost surely, 2^36323561 is an apocalyptic number.

It is an amenable number.

36323561 is a deficient number, since it is larger than the sum of its proper divisors (1).

36323561 is an equidigital number, since it uses as much as digits as its factorization.

36323561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 29.

The square root of 36323561 is about 6026.9031019256. The cubic root of 36323561 is about 331.1790119152.

The spelling of 36323561 in words is "thirty-six million, three hundred twenty-three thousand, five hundred sixty-one".