212468069 has 4 divisors (see below), whose sum is σ = 231783360. Its totient is φ = 193152780.

The previous prime is 212468041. The next prime is 212468093. The reversal of 212468069 is 960864212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212468069 - 2¹² = 212463973 is a prime.

It is a super-2 number, since 2×212468069² = 90285360689177522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212468029) 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 3 ways as a sum of consecutive naturals, for example, 9657629 + ... + 9657650.

It is an arithmetic number, because the mean of its divisors is an integer number (57945840).

Almost surely, 2^212468069 is an apocalyptic number.

It is an amenable number.

212468069 is a deficient number, since it is larger than the sum of its proper divisors (19315291).

212468069 is a wasteful number, since it uses less digits than its factorization.

212468069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19315290.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 212468069 is about 14576.2844717027. The cubic root of 212468069 is about 596.7117049670.

The spelling of 212468069 in words is "two hundred twelve million, four hundred sixty-eight thousand, sixty-nine".