211493159 has 4 divisors (see below), whose sum is σ = 211634640. Its totient is φ = 211351680.

The previous prime is 211493099. The next prime is 211493171. The reversal of 211493159 is 951394112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211493159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211493189) 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 in 3 ways as a sum of consecutive naturals, for example, 68474 + ... + 71495.

It is an arithmetic number, because the mean of its divisors is an integer number (52908660).

Almost surely, 2^211493159 is an apocalyptic number.

211493159 is a deficient number, since it is larger than the sum of its proper divisors (141481).

211493159 is a wasteful number, since it uses less digits than its factorization.

211493159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141480.

The product of its digits is 9720, while the sum is 35.

The square root of 211493159 is about 14542.8043719222. The cubic root of 211493159 is about 595.7976346660.

The spelling of 211493159 in words is "two hundred eleven million, four hundred ninety-three thousand, one hundred fifty-nine".