212318479 has 4 divisors (see below), whose sum is σ = 213670984. Its totient is φ = 210965976.

The previous prime is 212318467. The next prime is 212318507. The reversal of 212318479 is 974813212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212318479 - 2¹⁷ = 212187407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212318429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 676017 + ... + 676330.

It is an arithmetic number, because the mean of its divisors is an integer number (53417746).

Almost surely, 2^212318479 is an apocalyptic number.

212318479 is a deficient number, since it is larger than the sum of its proper divisors (1352505).

212318479 is a wasteful number, since it uses less digits than its factorization.

212318479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352504.

The product of its digits is 24192, while the sum is 37.

The square root of 212318479 is about 14571.1522879970. The cubic root of 212318479 is about 596.5716320592.

It can be divided in two parts, 2123 and 18479, that added together give a palindrome (20602).

The spelling of 212318479 in words is "two hundred twelve million, three hundred eighteen thousand, four hundred seventy-nine".