211514489 has 2 divisors, whose sum is σ = 211514490. Its totient is φ = 211514488.

The previous prime is 211514447. The next prime is 211514491. The reversal of 211514489 is 984415112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 171610000 + 39904489 = 13100^2 + 6317^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211514489 is a prime.

It is a super-2 number, since 2×211514489² = 89476758113862242, which contains 22 as substring.

Together with 211514491, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (211514419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105757244 + 105757245.

It is an arithmetic number, because the mean of its divisors is an integer number (105757245).

Almost surely, 2^211514489 is an apocalyptic number.

It is an amenable number.

211514489 is a deficient number, since it is larger than the sum of its proper divisors (1).

211514489 is an equidigital number, since it uses as much as digits as its factorization.

211514489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 35.

The square root of 211514489 is about 14543.5377057991. The cubic root of 211514489 is about 595.8176635823.

The spelling of 211514489 in words is "two hundred eleven million, five hundred fourteen thousand, four hundred eighty-nine".