212941894 has 16 divisors (see below), whose sum is σ = 350470800. Its totient is φ = 96230560.

The previous prime is 212941793. The next prime is 212941901. The reversal of 212941894 is 498149212.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24169 + ... + 31780.

It is an arithmetic number, because the mean of its divisors is an integer number (21904425).

Almost surely, 2^212941894 is an apocalyptic number.

212941894 is a deficient number, since it is larger than the sum of its proper divisors (137528906).

212941894 is a wasteful number, since it uses less digits than its factorization.

212941894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56135.

The product of its digits is 41472, while the sum is 40.

The square root of 212941894 is about 14592.5287047859. The cubic root of 212941894 is about 597.1549511887.

The spelling of 212941894 in words is "two hundred twelve million, nine hundred forty-one thousand, eight hundred ninety-four".