36181979 has 2 divisors, whose sum is σ = 36181980. Its totient is φ = 36181978.

The previous prime is 36181961. The next prime is 36181997. The reversal of 36181979 is 97918163.

36181979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (36181997) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (36181961) and next prime (36181997).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36181979 is a prime.

It is not a weakly prime, because it can be changed into another prime (36111979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18090989 + 18090990.

It is an arithmetic number, because the mean of its divisors is an integer number (18090990).

Almost surely, 2^36181979 is an apocalyptic number.

36181979 is a deficient number, since it is larger than the sum of its proper divisors (1).

36181979 is an equidigital number, since it uses as much as digits as its factorization.

36181979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 44.

The square root of 36181979 is about 6015.1458003942. The cubic root of 36181979 is about 330.7481617163.

The spelling of 36181979 in words is "thirty-six million, one hundred eighty-one thousand, nine hundred seventy-nine".