211434142 has 8 divisors (see below), whose sum is σ = 317236536. Its totient is φ = 105688632.

The previous prime is 211434133. The next prime is 211434163. The reversal of 211434142 is 241434112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3228 + ... + 20815.

It is an arithmetic number, because the mean of its divisors is an integer number (39654567).

Almost surely, 2^211434142 is an apocalyptic number.

211434142 is a deficient number, since it is larger than the sum of its proper divisors (105802394).

211434142 is a wasteful number, since it uses less digits than its factorization.

211434142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28442.

The product of its digits is 768, while the sum is 22.

The square root of 211434142 is about 14540.7751512772. The cubic root of 211434142 is about 595.7422105563.

Adding to 211434142 its reverse (241434112), we get a palindrome (452868254).

The spelling of 211434142 in words is "two hundred eleven million, four hundred thirty-four thousand, one hundred forty-two".