36647161 has 2 divisors, whose sum is σ = 36647162. Its totient is φ = 36647160.

The previous prime is 36647159. The next prime is 36647167. The reversal of 36647161 is 16174663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33131536 + 3515625 = 5756^2 + 1875^2 .

It is a cyclic number.

It is not a de Polignac number, because 36647161 - 2¹ = 36647159 is a prime.

Together with 36647159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (36647167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18323580 + 18323581.

It is an arithmetic number, because the mean of its divisors is an integer number (18323581).

Almost surely, 2^36647161 is an apocalyptic number.

It is an amenable number.

36647161 is a deficient number, since it is larger than the sum of its proper divisors (1).

36647161 is an equidigital number, since it uses as much as digits as its factorization.

36647161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 34.

The square root of 36647161 is about 6053.6898665194. The cubic root of 36647161 is about 332.1595769614.

The spelling of 36647161 in words is "thirty-six million, six hundred forty-seven thousand, one hundred sixty-one".