36645139 has 2 divisors, whose sum is σ = 36645140. Its totient is φ = 36645138.

The previous prime is 36645137. The next prime is 36645151. The reversal of 36645139 is 93154663.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36645139 - 2¹ = 36645137 is a prime.

Together with 36645137, it forms a pair of twin primes.

It is a zygodrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 36645098 and 36645107.

It is not a weakly prime, because it can be changed into another prime (36645137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18322569 + 18322570.

It is an arithmetic number, because the mean of its divisors is an integer number (18322570).

Almost surely, 2^36645139 is an apocalyptic number.

36645139 is a deficient number, since it is larger than the sum of its proper divisors (1).

36645139 is an equidigital number, since it uses as much as digits as its factorization.

36645139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 37.

The square root of 36645139 is about 6053.5228586336. The cubic root of 36645139 is about 332.1534679023.

The spelling of 36645139 in words is "thirty-six million, six hundred forty-five thousand, one hundred thirty-nine".