211152239 has 2 divisors, whose sum is σ = 211152240. Its totient is φ = 211152238.

The previous prime is 211152217. The next prime is 211152241. The reversal of 211152239 is 932251112.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211152239 is a prime.

Together with 211152241, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211152839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105576119 + 105576120.

It is an arithmetic number, because the mean of its divisors is an integer number (105576120).

Almost surely, 2^211152239 is an apocalyptic number.

211152239 is a deficient number, since it is larger than the sum of its proper divisors (1).

211152239 is an equidigital number, since it uses as much as digits as its factorization.

211152239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 26.

The square root of 211152239 is about 14531.0783839328. The cubic root of 211152239 is about 595.4773271141.

The spelling of 211152239 in words is "two hundred eleven million, one hundred fifty-two thousand, two hundred thirty-nine".