212431067 has 8 divisors (see below), whose sum is σ = 214914000. Its totient is φ = 209954304.

The previous prime is 212431057. The next prime is 212431069. The reversal of 212431067 is 760134212.

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 212431067 - 2²⁴ = 195653851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212431069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124184 + ... + 125882.

It is an arithmetic number, because the mean of its divisors is an integer number (26864250).

Almost surely, 2^212431067 is an apocalyptic number.

212431067 is a deficient number, since it is larger than the sum of its proper divisors (2482933).

212431067 is a wasteful number, since it uses less digits than its factorization.

212431067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3085.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 212431067 is about 14575.0151629424. The cubic root of 212431067 is about 596.6770631994.

Adding to 212431067 its reverse (760134212), we get a palindrome (972565279).

The spelling of 212431067 in words is "two hundred twelve million, four hundred thirty-one thousand, sixty-seven".