212064403 has 4 divisors (see below), whose sum is σ = 212155200. Its totient is φ = 211973608.

The previous prime is 212064401. The next prime is 212064421. The reversal of 212064403 is 304460212.

It is a happy number.

212064403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212064403 - 2¹ = 212064401 is a prime.

It is a super-2 number, since 2×212064403² = 89942622039492818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212064401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41800 + ... + 46597.

It is an arithmetic number, because the mean of its divisors is an integer number (53038800).

Almost surely, 2^212064403 is an apocalyptic number.

212064403 is a deficient number, since it is larger than the sum of its proper divisors (90797).

212064403 is an equidigital number, since it uses as much as digits as its factorization.

212064403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90796.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 212064403 is about 14562.4312187217. The cubic root of 212064403 is about 596.3335698225. Note that the first 3 decimals are identical.

The spelling of 212064403 in words is "two hundred twelve million, sixty-four thousand, four hundred three".