213434132 has 12 divisors (see below), whose sum is σ = 385558656. Its totient is φ = 103274520.

The previous prime is 213434129. The next prime is 213434147. The reversal of 213434132 is 231434312.

It is a junction number, because it is equal to n+sod(n) for n = 213434098 and 213434107.

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, 860498 + ... + 860745.

It is an arithmetic number, because the mean of its divisors is an integer number (32129888).

Almost surely, 2^213434132 is an apocalyptic number.

It is an amenable number.

213434132 is a deficient number, since it is larger than the sum of its proper divisors (172124524).

213434132 is a wasteful number, since it uses less digits than its factorization.

213434132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1721278 (or 1721276 counting only the distinct ones).

The product of its digits is 1728, while the sum is 23.

The square root of 213434132 is about 14609.3850657719. The cubic root of 213434132 is about 597.6147263112.

Adding to 213434132 its reverse (231434312), we get a palindrome (444868444).

The spelling of 213434132 in words is "two hundred thirteen million, four hundred thirty-four thousand, one hundred thirty-two".