212456949 has 8 divisors (see below), whose sum is σ = 283620960. Its totient is φ = 141465456.

The previous prime is 212456947. The next prime is 212456969. The reversal of 212456949 is 949654212.

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

It is not a de Polignac number, because 212456949 - 2¹ = 212456947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212456949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212456947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40227 + ... + 45200.

It is an arithmetic number, because the mean of its divisors is an integer number (35452620).

Almost surely, 2^212456949 is an apocalyptic number.

It is an amenable number.

212456949 is a deficient number, since it is larger than the sum of its proper divisors (71164011).

212456949 is an equidigital number, since it uses as much as digits as its factorization.

212456949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86259.

The product of its digits is 155520, while the sum is 42.

The square root of 212456949 is about 14575.9030251988. The cubic root of 212456949 is about 596.7012946969.

The spelling of 212456949 in words is "two hundred twelve million, four hundred fifty-six thousand, nine hundred forty-nine".