212132144 has 20 divisors (see below), whose sum is σ = 469721424. Its totient is φ = 90913728.

The previous prime is 212132119. The next prime is 212132153. The reversal of 212132144 is 441231212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 946907 + ... + 947130.

Almost surely, 2^212132144 is an apocalyptic number.

It is an amenable number.

212132144 is an abundant number, since it is smaller than the sum of its proper divisors (257589280).

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

212132144 is a wasteful number, since it uses less digits than its factorization.

212132144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1894052 (or 1894046 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 212132144 is about 14564.7569152389. The cubic root of 212132144 is about 596.3970598617.

Adding to 212132144 its reverse (441231212), we get a palindrome (653363356).

The spelling of 212132144 in words is "two hundred twelve million, one hundred thirty-two thousand, one hundred forty-four".