212555234 has 16 divisors (see below), whose sum is σ = 327019896. Its totient is φ = 103555200.

The previous prime is 212555219. The next prime is 212555243. The reversal of 212555234 is 432555212.

It can be written as a sum of positive squares in 4 ways, for example, as 137992009 + 74563225 = 11747^2 + 8635^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212555197 and 212555206.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112304 + ... + 114180.

Almost surely, 2^212555234 is an apocalyptic number.

212555234 is a deficient number, since it is larger than the sum of its proper divisors (114464662).

212555234 is a wasteful number, since it uses less digits than its factorization.

212555234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3301.

The product of its digits is 12000, while the sum is 29.

The square root of 212555234 is about 14579.2741245921. The cubic root of 212555234 is about 596.7932941127.

The spelling of 212555234 in words is "two hundred twelve million, five hundred fifty-five thousand, two hundred thirty-four".