212132433 has 8 divisors (see below), whose sum is σ = 290487808. Its totient is φ = 137599344.

The previous prime is 212132429. The next prime is 212132449. The reversal of 212132433 is 334231212.

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

It is not a de Polignac number, because 212132433 - 2² = 212132429 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212132413) 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, 955441 + ... + 955662.

It is an arithmetic number, because the mean of its divisors is an integer number (36310976).

Almost surely, 2^212132433 is an apocalyptic number.

It is an amenable number.

212132433 is a deficient number, since it is larger than the sum of its proper divisors (78355375).

212132433 is a wasteful number, since it uses less digits than its factorization.

212132433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911143.

The product of its digits is 864, while the sum is 21.

The square root of 212132433 is about 14564.7668364447. The cubic root of 212132433 is about 596.3973306971.

Adding to 212132433 its reverse (334231212), we get a palindrome (546363645).

The spelling of 212132433 in words is "two hundred twelve million, one hundred thirty-two thousand, four hundred thirty-three".