212312532 has 12 divisors (see below), whose sum is σ = 495395936. Its totient is φ = 70770840.

The previous prime is 212312461. The next prime is 212312537. The reversal of 212312532 is 235213212.

212312532 is digitally balanced in base 2, because in such base 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 super-2 number, since 2×212312532² = 90153222488502048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212312499 and 212312508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212312537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8846344 + ... + 8846367.

Almost surely, 2^212312532 is an apocalyptic number.

It is an amenable number.

212312532 is an abundant number, since it is smaller than the sum of its proper divisors (283083404).

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

212312532 is a wasteful number, since it uses less digits than its factorization.

212312532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17692718 (or 17692716 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 212312532 is about 14570.9482189733. The cubic root of 212312532 is about 596.5660620547.

Adding to 212312532 its reverse (235213212), we get a palindrome (447525744).

The spelling of 212312532 in words is "two hundred twelve million, three hundred twelve thousand, five hundred thirty-two".