212535072 has 36 divisors (see below), whose sum is σ = 604397430. Its totient is φ = 70844928.

The previous prime is 212535053. The next prime is 212535073. The reversal of 212535072 is 270535212.

It can be written as a sum of positive squares in only one way, i.e., 178382736 + 34152336 = 13356^2 + 5844^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (212535073) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 368697 + ... + 369272.

Almost surely, 2^212535072 is an apocalyptic number.

It is an amenable number.

212535072 is an abundant number, since it is smaller than the sum of its proper divisors (391862358).

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

212535072 is a wasteful number, since it uses less digits than its factorization.

212535072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737985 (or 737974 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 212535072 is about 14578.5826471574. The cubic root of 212535072 is about 596.7744238381.

The spelling of 212535072 in words is "two hundred twelve million, five hundred thirty-five thousand, seventy-two".