212553234 has 40 divisors (see below), whose sum is σ = 489162828. Its totient is φ = 68934240.

The previous prime is 212553233. The next prime is 212553239. The reversal of 212553234 is 432355212.

It is a happy number.

212553234 is a `hidden beast` number, since 2 + 125 + 532 + 3 + 4 = 666.

212553234 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 206066025 + 6487209 = 14355^2 + 2547^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 212553198 and 212553207.

It is not an unprimeable number, because it can be changed into a prime (212553233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11737 + ... + 23724.

Almost surely, 2^212553234 is an apocalyptic number.

212553234 is an abundant number, since it is smaller than the sum of its proper divisors (276609594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212553234 is a wasteful number, since it uses less digits than its factorization.

212553234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35512 (or 35503 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 212553234 is about 14579.2055339103. The cubic root of 212553234 is about 596.7914223006.

The spelling of 212553234 in words is "two hundred twelve million, five hundred fifty-three thousand, two hundred thirty-four".