212716231 has 8 divisors (see below), whose sum is σ = 261804704. Its totient is φ = 168302880.

The previous prime is 212716199. The next prime is 212716249. The reversal of 212716231 is 132617212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212716231 - 2⁵ = 212716199 is a prime.

It is a super-2 number, since 2×212716231² = 90496389861690722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212716196 and 212716205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212716531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1168680 + ... + 1168861.

It is an arithmetic number, because the mean of its divisors is an integer number (32725588).

Almost surely, 2^212716231 is an apocalyptic number.

212716231 is a deficient number, since it is larger than the sum of its proper divisors (49088473).

212716231 is a wasteful number, since it uses less digits than its factorization.

212716231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2337561.

The product of its digits is 1008, while the sum is 25.

The square root of 212716231 is about 14584.7945134650. The cubic root of 212716231 is about 596.9439336738.

The spelling of 212716231 in words is "two hundred twelve million, seven hundred sixteen thousand, two hundred thirty-one".