211096913 has 2 divisors, whose sum is σ = 211096914. Its totient is φ = 211096912.

The previous prime is 211096909. The next prime is 211096931. The reversal of 211096913 is 319690112.

Together with next prime (211096931) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161366209 + 49730704 = 12703^2 + 7052^2 .

It is a cyclic number.

It is not a de Polignac number, because 211096913 - 2² = 211096909 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211096913.

It is not a weakly prime, because it can be changed into another prime (211096993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105548456 + 105548457.

It is an arithmetic number, because the mean of its divisors is an integer number (105548457).

Almost surely, 2^211096913 is an apocalyptic number.

It is an amenable number.

211096913 is a deficient number, since it is larger than the sum of its proper divisors (1).

211096913 is an equidigital number, since it uses as much as digits as its factorization.

211096913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 211096913 is about 14529.1745464083. The cubic root of 211096913 is about 595.4253136844.

The spelling of 211096913 in words is "two hundred eleven million, ninety-six thousand, nine hundred thirteen".