2187529452 has 18 divisors (see below), whose sum is σ = 5529588428. Its totient is φ = 729176472.

The previous prime is 2187529403. The next prime is 2187529453. The reversal of 2187529452 is 2549257812.

2187529452 is a `hidden beast` number, since 2 + 1 + 87 + 529 + 45 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 2187529398 and 2187529407.

It is not an unprimeable number, because it can be changed into a prime (2187529453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30382318 + ... + 30382389.

Almost surely, 2^2187529452 is an apocalyptic number.

It is an amenable number.

2187529452 is an abundant number, since it is smaller than the sum of its proper divisors (3342058976).

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

2187529452 is a wasteful number, since it uses less digits than its factorization.

2187529452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60764717 (or 60764712 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 2187529452 is about 46771.0321887384. The cubic root of 2187529452 is about 1298.1293513161.

The spelling of 2187529452 in words is "two billion, one hundred eighty-seven million, five hundred twenty-nine thousand, four hundred fifty-two".