213112452 has 96 divisors (see below), whose sum is σ = 588349440. Its totient is φ = 58769280.

The previous prime is 213112451. The next prime is 213112469. The reversal of 213112452 is 254211312.

213112452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (213112451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 593449 + ... + 593807.

It is an arithmetic number, because the mean of its divisors is an integer number (6128640).

Almost surely, 2^213112452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213112452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294174720).

213112452 is an abundant number, since it is smaller than the sum of its proper divisors (375236988).

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

213112452 is a wasteful number, since it uses less digits than its factorization.

213112452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601 (or 599 counting only the distinct ones).

The product of its digits is 480, while the sum is 21.

The square root of 213112452 is about 14598.3715530192. The cubic root of 213112452 is about 597.3143411078.

Adding to 213112452 its reverse (254211312), we get a palindrome (467323764).

The spelling of 213112452 in words is "two hundred thirteen million, one hundred twelve thousand, four hundred fifty-two".