212040603 has 12 divisors (see below), whose sum is σ = 306499440. Its totient is φ = 141259536.

The previous prime is 212040601. The next prime is 212040607. The reversal of 212040603 is 306040212.

It is a happy number.

212040603 is a `hidden beast` number, since 2 + 1 + 20 + 40 + 603 = 666.

It is not a de Polignac number, because 212040603 - 2¹ = 212040601 is a prime.

It is a super-2 number, since 2×212040603² = 89922434641207218, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212040601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6253 + ... + 21521.

It is an arithmetic number, because the mean of its divisors is an integer number (25541620).

Almost surely, 2^212040603 is an apocalyptic number.

212040603 is a deficient number, since it is larger than the sum of its proper divisors (94458837).

212040603 is a wasteful number, since it uses less digits than its factorization.

212040603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16818 (or 16815 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 212040603 is about 14561.6140245510. The cubic root of 212040603 is about 596.3112601377.

Adding to 212040603 its reverse (306040212), we get a palindrome (518080815).

The spelling of 212040603 in words is "two hundred twelve million, forty thousand, six hundred three".