211142533 has 48 divisors (see below), whose sum is σ = 274089600. Its totient is φ = 159022080.

The previous prime is 211142509. The next prime is 211142563. The reversal of 211142533 is 335241112.

It is a happy number.

211142533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 211142533 - 2²⁵ = 177588101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211142563) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3461323 + ... + 3461383.

It is an arithmetic number, because the mean of its divisors is an integer number (5710200).

Almost surely, 2^211142533 is an apocalyptic number.

It is an amenable number.

211142533 is a deficient number, since it is larger than the sum of its proper divisors (62947067).

211142533 is a wasteful number, since it uses less digits than its factorization.

211142533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 173 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 211142533 is about 14530.7444062581. The cubic root of 211142533 is about 595.4682029051.

Adding to 211142533 its reverse (335241112), we get a palindrome (546383645).

It can be divided in two parts, 2111 and 42533, that added together give a palindrome (44644).

The spelling of 211142533 in words is "two hundred eleven million, one hundred forty-two thousand, five hundred thirty-three".