212911489 has 8 divisors (see below), whose sum is σ = 245602368. Its totient is φ = 180789360.

The previous prime is 212911487. The next prime is 212911507. The reversal of 212911489 is 984119212.

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 212911489 - 2¹ = 212911487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212911481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141382 + ... + 142879.

It is an arithmetic number, because the mean of its divisors is an integer number (30700296).

Almost surely, 2^212911489 is an apocalyptic number.

It is an amenable number.

212911489 is a deficient number, since it is larger than the sum of its proper divisors (32690879).

212911489 is a wasteful number, since it uses less digits than its factorization.

212911489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284375.

The product of its digits is 10368, while the sum is 37.

The square root of 212911489 is about 14591.4868673484. The cubic root of 212911489 is about 597.1265281602.

The spelling of 212911489 in words is "two hundred twelve million, nine hundred eleven thousand, four hundred eighty-nine".