212459230489 has 9 divisors (see below), whose sum is σ = 233535140629. Its totient is φ = 193140145660.

The previous prime is 212459230483. The next prime is 212459230493. The reversal of 212459230489 is 984032954212.

The square root of 212459230489 is 460933.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 212459230489 - 2⁵ = 212459230457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212459230483) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5049312 + ... + 5091214.

Almost surely, 2^212459230489 is an apocalyptic number.

212459230489 is the 460933-rd square number.

212459230489 is the 230467-th centered octagonal number.

It is an amenable number.

212459230489 is a deficient number, since it is larger than the sum of its proper divisors (21075910140).

212459230489 is an frugal number, since it uses more digits than its factorization.

212459230489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83828 (or 41914 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 49.

Multiplying 212459230489 by its sum of digits (49), we get a square (10410502293961 = 3226531²).

The spelling of 212459230489 in words is "two hundred twelve billion, four hundred fifty-nine million, two hundred thirty thousand, four hundred eighty-nine".