212540524 has 12 divisors (see below), whose sum is σ = 425081104. Its totient is φ = 91088784.

The previous prime is 212540521. The next prime is 212540527. The reversal of 212540524 is 425045212.

212540524 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (212540521) and next prime (212540527).

212540524 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (212540521) 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, 3795339 + ... + 3795394.

Almost surely, 2^212540524 is an apocalyptic number.

It is an amenable number.

212540524 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

212540524 is a wasteful number, since it uses less digits than its factorization.

212540524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7590744 (or 7590742 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 212540524 is about 14578.7696325856. The cubic root of 212540524 is about 596.7795266608.

Adding to 212540524 its reverse (425045212), we get a palindrome (637585736).

The spelling of 212540524 in words is "two hundred twelve million, five hundred forty thousand, five hundred twenty-four".