212406103 has 16 divisors (see below), whose sum is σ = 263495680. Its totient is φ = 166725216.

The previous prime is 212406097. The next prime is 212406107. The reversal of 212406103 is 301604212.

It is not a de Polignac number, because 212406103 - 2⁵ = 212406071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212406107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2368 + ... + 20746.

It is an arithmetic number, because the mean of its divisors is an integer number (16468480).

Almost surely, 2^212406103 is an apocalyptic number.

212406103 is a deficient number, since it is larger than the sum of its proper divisors (51089577).

212406103 is a wasteful number, since it uses less digits than its factorization.

212406103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18526.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 212406103 is about 14574.1587407301. The cubic root of 212406103 is about 596.6536892960.

The spelling of 212406103 in words is "two hundred twelve million, four hundred six thousand, one hundred three".