212135141 has 8 divisors (see below), whose sum is σ = 221538240. Its totient is φ = 202747072.

The previous prime is 212135117. The next prime is 212135167. The reversal of 212135141 is 141531212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212135141 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 (212135101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32750 + ... + 38688.

It is an arithmetic number, because the mean of its divisors is an integer number (27692280).

Almost surely, 2^212135141 is an apocalyptic number.

It is an amenable number.

212135141 is a deficient number, since it is larger than the sum of its proper divisors (9403099).

212135141 is a wasteful number, since it uses less digits than its factorization.

212135141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7515.

The product of its digits is 240, while the sum is 20.

The square root of 212135141 is about 14564.8598002178. The cubic root of 212135141 is about 596.3998684783.

Adding to 212135141 its reverse (141531212), we get a palindrome (353666353).

The spelling of 212135141 in words is "two hundred twelve million, one hundred thirty-five thousand, one hundred forty-one".