212543051 has 16 divisors (see below), whose sum is σ = 245656320. Its totient is φ = 180131040.

The previous prime is 212543047. The next prime is 212543053. The reversal of 212543051 is 150345212.

212543051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 212543051 - 2² = 212543047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212543053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 287240 + ... + 287978.

It is an arithmetic number, because the mean of its divisors is an integer number (15353520).

Almost surely, 2^212543051 is an apocalyptic number.

212543051 is a deficient number, since it is larger than the sum of its proper divisors (33113269).

212543051 is a wasteful number, since it uses less digits than its factorization.

212543051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 212543051 is about 14578.8562994496. The cubic root of 212543051 is about 596.7818917876.

Adding to 212543051 its reverse (150345212), we get a palindrome (362888263).

The spelling of 212543051 in words is "two hundred twelve million, five hundred forty-three thousand, fifty-one".