212043357 has 12 divisors (see below), whose sum is σ = 306416604. Its totient is φ = 141301440.

The previous prime is 212043343. The next prime is 212043361. The reversal of 212043357 is 753340212.

212043357 is digitally balanced in base 2, 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 79816356 + 132227001 = 8934^2 + 11499^2 .

It is not a de Polignac number, because 212043357 - 2¹⁴ = 212026973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212043357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212045357) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29257 + ... + 35777.

It is an arithmetic number, because the mean of its divisors is an integer number (25534717).

Almost surely, 2^212043357 is an apocalyptic number.

It is an amenable number.

212043357 is a deficient number, since it is larger than the sum of its proper divisors (94373247).

212043357 is a wasteful number, since it uses less digits than its factorization.

212043357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10140 (or 10137 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 212043357 is about 14561.7085879371. The cubic root of 212043357 is about 596.3138417724.

Adding to 212043357 its reverse (753340212), we get a palindrome (965383569).

The spelling of 212043357 in words is "two hundred twelve million, forty-three thousand, three hundred fifty-seven".