901981163 has 2 divisors, whose sum is σ = 901981164. Its totient is φ = 901981162.

The previous prime is 901981159. The next prime is 901981187. The reversal of 901981163 is 361189109.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 901981163 - 2² = 901981159 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (901981103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450990581 + 450990582.

It is an arithmetic number, because the mean of its divisors is an integer number (450990582).

Almost surely, 2^901981163 is an apocalyptic number.

901981163 is a deficient number, since it is larger than the sum of its proper divisors (1).

901981163 is an equidigital number, since it uses as much as digits as its factorization.

901981163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 901981163 is about 30033.0012319781. The cubic root of 901981163 is about 966.1973068359.

The spelling of 901981163 in words is "nine hundred one million, nine hundred eighty-one thousand, one hundred sixty-three".