36122809 has 8 divisors (see below), whose sum is σ = 37242720. Its totient is φ = 35019936.

The previous prime is 36122803. The next prime is 36122833. The reversal of 36122809 is 90822163.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36122809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36122803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114 + ... + 8500.

It is an arithmetic number, because the mean of its divisors is an integer number (4655340).

Almost surely, 2^36122809 is an apocalyptic number.

It is an amenable number.

36122809 is a deficient number, since it is larger than the sum of its proper divisors (1119911).

36122809 is an equidigital number, since it uses as much as digits as its factorization.

36122809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8519.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 36122809 is about 6010.2253701504. The cubic root of 36122809 is about 330.5677676171.

The spelling of 36122809 in words is "thirty-six million, one hundred twenty-two thousand, eight hundred nine".