212643375 has 64 divisors (see below), whose sum is σ = 411540480. Its totient is φ = 95491200.

The previous prime is 212643373. The next prime is 212643401. The reversal of 212643375 is 573346212.

It is not a de Polignac number, because 212643375 - 2¹ = 212643373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212643371) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 154189 + ... + 155561.

It is an arithmetic number, because the mean of its divisors is an integer number (6430320).

Almost surely, 2^212643375 is an apocalyptic number.

212643375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

212643375 is a deficient number, since it is larger than the sum of its proper divisors (198897105).

212643375 is a wasteful number, since it uses less digits than its factorization.

212643375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457 (or 1447 counting only the distinct ones).

The product of its digits is 30240, while the sum is 33.

The square root of 212643375 is about 14582.2966298180. The cubic root of 212643375 is about 596.8757741463.

Adding to 212643375 its reverse (573346212), we get a palindrome (785989587).

The spelling of 212643375 in words is "two hundred twelve million, six hundred forty-three thousand, three hundred seventy-five".