36681241 has 2 divisors, whose sum is σ = 36681242. Its totient is φ = 36681240.

The previous prime is 36681209. The next prime is 36681299. The reversal of 36681241 is 14218663.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29811600 + 6869641 = 5460^2 + 2621^2 .

It is an emirp because it is prime and its reverse (14218663) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36681241 - 2⁵ = 36681209 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (36682241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18340620 + 18340621.

It is an arithmetic number, because the mean of its divisors is an integer number (18340621).

Almost surely, 2^36681241 is an apocalyptic number.

It is an amenable number.

36681241 is a deficient number, since it is larger than the sum of its proper divisors (1).

36681241 is an equidigital number, since it uses as much as digits as its factorization.

36681241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 31.

The square root of 36681241 is about 6056.5040246003. The cubic root of 36681241 is about 332.2625089110.

The spelling of 36681241 in words is "thirty-six million, six hundred eighty-one thousand, two hundred forty-one".