213211489 has 2 divisors, whose sum is σ = 213211490. Its totient is φ = 213211488.

The previous prime is 213211463. The next prime is 213211507. The reversal of 213211489 is 984112312.

213211489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212663889 + 547600 = 14583^2 + 740^2 .

It is a cyclic number.

It is not a de Polignac number, because 213211489 - 2⁵ = 213211457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213211489.

It is not a weakly prime, because it can be changed into another prime (213211589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106605744 + 106605745.

It is an arithmetic number, because the mean of its divisors is an integer number (106605745).

Almost surely, 2^213211489 is an apocalyptic number.

It is an amenable number.

213211489 is a deficient number, since it is larger than the sum of its proper divisors (1).

213211489 is an equidigital number, since it uses as much as digits as its factorization.

213211489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 31.

The square root of 213211489 is about 14601.7632154476. The cubic root of 213211489 is about 597.4068541740.

The spelling of 213211489 in words is "two hundred thirteen million, two hundred eleven thousand, four hundred eighty-nine".