212184142 has 4 divisors (see below), whose sum is σ = 318276216. Its totient is φ = 106092070.

The previous prime is 212184121. The next prime is 212184197. The reversal of 212184142 is 241481212.

212184142 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 super-2 number, since 2×212184142² = 90044220232552328, which contains 22 as substring.

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, 53046034 + ... + 53046037.

It is an arithmetic number, because the mean of its divisors is an integer number (79569054).

Almost surely, 2^212184142 is an apocalyptic number.

212184142 is a deficient number, since it is larger than the sum of its proper divisors (106092074).

212184142 is a wasteful number, since it uses less digits than its factorization.

212184142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106092073.

The product of its digits is 1024, while the sum is 25.

The square root of 212184142 is about 14566.5418682678. The cubic root of 212184142 is about 596.4457856547.

The spelling of 212184142 in words is "two hundred twelve million, one hundred eighty-four thousand, one hundred forty-two".