36205969 has 2 divisors, whose sum is σ = 36205970. Its totient is φ = 36205968.

The previous prime is 36205951. The next prime is 36206021. The reversal of 36205969 is 96950263.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25401600 + 10804369 = 5040^2 + 3287^2 .

It is a cyclic number.

It is not a de Polignac number, because 36205969 - 2⁹ = 36205457 is a prime.

It is a super-2 number, since 2×36205969² = 2621744382457922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (36205909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18102984 + 18102985.

It is an arithmetic number, because the mean of its divisors is an integer number (18102985).

Almost surely, 2^36205969 is an apocalyptic number.

It is an amenable number.

36205969 is a deficient number, since it is larger than the sum of its proper divisors (1).

36205969 is an equidigital number, since it uses as much as digits as its factorization.

36205969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87480, while the sum is 40.

The square root of 36205969 is about 6017.1396028346. The cubic root of 36205969 is about 330.8212450174.

The spelling of 36205969 in words is "thirty-six million, two hundred five thousand, nine hundred sixty-nine".