212135648 has 12 divisors (see below), whose sum is σ = 417642120. Its totient is φ = 106067808.

The previous prime is 212135629. The next prime is 212135687. The reversal of 212135648 is 846531212.

212135648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 6629239 = 212135648 / (2 + 1 + 2 + 1 + 3 + 5 + 6 + 4 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3314588 + ... + 3314651.

It is an arithmetic number, because the mean of its divisors is an integer number (34803510).

Almost surely, 2^212135648 is an apocalyptic number.

It is an amenable number.

212135648 is a deficient number, since it is larger than the sum of its proper divisors (205506472).

212135648 is an equidigital number, since it uses as much as digits as its factorization.

212135648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6629249 (or 6629241 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 212135648 is about 14564.8772051123. The cubic root of 212135648 is about 596.4003436070.

The spelling of 212135648 in words is "two hundred twelve million, one hundred thirty-five thousand, six hundred forty-eight".