213126132 has 12 divisors (see below), whose sum is σ = 497294336. Its totient is φ = 71042040.

The previous prime is 213126107. The next prime is 213126143. The reversal of 213126132 is 231621312.

213126132 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is a zygodrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 213126099 and 213126108.

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, 8880244 + ... + 8880267.

Almost surely, 2^213126132 is an apocalyptic number.

It is an amenable number.

213126132 is an abundant number, since it is smaller than the sum of its proper divisors (284168204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213126132 is a wasteful number, since it uses less digits than its factorization.

213126132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17760518 (or 17760516 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

The square root of 213126132 is about 14598.8400909113. The cubic root of 213126132 is about 597.3271216614.

Adding to 213126132 its reverse (231621312), we get a palindrome (444747444).

The spelling of 213126132 in words is "two hundred thirteen million, one hundred twenty-six thousand, one hundred thirty-two".