212711457 has 8 divisors (see below), whose sum is σ = 324131776. Its totient is φ = 121549392.

The previous prime is 212711431. The next prime is 212711467. The reversal of 212711457 is 754117212.

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

It is not a de Polignac number, because 212711457 - 2¹² = 212707361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212711417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5064538 + ... + 5064579.

It is an arithmetic number, because the mean of its divisors is an integer number (40516472).

Almost surely, 2^212711457 is an apocalyptic number.

It is an amenable number.

212711457 is a deficient number, since it is larger than the sum of its proper divisors (111420319).

212711457 is a wasteful number, since it uses less digits than its factorization.

212711457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10129127.

The product of its digits is 3920, while the sum is 30.

The square root of 212711457 is about 14584.6308489451. The cubic root of 212711457 is about 596.9394678939.

Adding to 212711457 its reverse (754117212), we get a palindrome (966828669).

The spelling of 212711457 in words is "two hundred twelve million, seven hundred eleven thousand, four hundred fifty-seven".