36561197 has 2 divisors, whose sum is σ = 36561198. Its totient is φ = 36561196.

The previous prime is 36561193. The next prime is 36561209. The reversal of 36561197 is 79116563.

36561197 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 can be written as a sum of positive squares in only one way, i.e., 26739241 + 9821956 = 5171^2 + 3134^2 .

It is a cyclic number.

It is not a de Polignac number, because 36561197 - 2² = 36561193 is a prime.

It is a super-2 number, since 2×36561197² = 2673442252145618, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 36561197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36561193) 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, 18280598 + 18280599.

It is an arithmetic number, because the mean of its divisors is an integer number (18280599).

Almost surely, 2^36561197 is an apocalyptic number.

It is an amenable number.

36561197 is a deficient number, since it is larger than the sum of its proper divisors (1).

36561197 is an equidigital number, since it uses as much as digits as its factorization.

36561197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34020, while the sum is 38.

The square root of 36561197 is about 6046.5855654245. The cubic root of 36561197 is about 331.8996557686.

The spelling of 36561197 in words is "thirty-six million, five hundred sixty-one thousand, one hundred ninety-seven".