213544452 has 48 divisors (see below), whose sum is σ = 544444992. Its totient is φ = 64606080.

The previous prime is 213544451. The next prime is 213544483. The reversal of 213544452 is 254445312.

It is not an unprimeable number, because it can be changed into a prime (213544451) 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 15 ways as a sum of consecutive naturals, for example, 132918 + ... + 134514.

It is an arithmetic number, because the mean of its divisors is an integer number (11342604).

Almost surely, 2^213544452 is an apocalyptic number.

213544452 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

213544452 is an abundant number, since it is smaller than the sum of its proper divisors (330900540).

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

213544452 is a wasteful number, since it uses less digits than its factorization.

213544452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2628 (or 2626 counting only the distinct ones).

The product of its digits is 19200, while the sum is 30.

The square root of 213544452 is about 14613.1602331597. The cubic root of 213544452 is about 597.7176737641.

Adding to 213544452 its reverse (254445312), we get a palindrome (467989764).

The spelling of 213544452 in words is "two hundred thirteen million, five hundred forty-four thousand, four hundred fifty-two".