211163401 has 2 divisors, whose sum is σ = 211163402. Its totient is φ = 211163400.

The previous prime is 211163389. The next prime is 211163417. The reversal of 211163401 is 104361112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196140025 + 15023376 = 14005^2 + 3876^2 .

It is a cyclic number.

It is not a de Polignac number, because 211163401 - 2⁵ = 211163369 is a prime.

It is not a weakly prime, because it can be changed into another prime (211163461) 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, 105581700 + 105581701.

It is an arithmetic number, because the mean of its divisors is an integer number (105581701).

Almost surely, 2^211163401 is an apocalyptic number.

It is an amenable number.

211163401 is a deficient number, since it is larger than the sum of its proper divisors (1).

211163401 is an equidigital number, since it uses as much as digits as its factorization.

211163401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 211163401 is about 14531.4624522104. The cubic root of 211163401 is about 595.4878197029.

The spelling of 211163401 in words is "two hundred eleven million, one hundred sixty-three thousand, four hundred one".