212631206 has 8 divisors (see below), whose sum is σ = 337708440. Its totient is φ = 100061728.

The previous prime is 212631203. The next prime is 212631217. The reversal of 212631206 is 602136212.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212631203) 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, 3126896 + ... + 3126963.

It is an arithmetic number, because the mean of its divisors is an integer number (42213555).

Almost surely, 2^212631206 is an apocalyptic number.

212631206 is a deficient number, since it is larger than the sum of its proper divisors (125077234).

212631206 is a wasteful number, since it uses less digits than its factorization.

212631206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6253878.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 212631206 is about 14581.8793713293. The cubic root of 212631206 is about 596.8643880719.

Adding to 212631206 its reverse (602136212), we get a palindrome (814767418).

The spelling of 212631206 in words is "two hundred twelve million, six hundred thirty-one thousand, two hundred six".