213545300 has 18 divisors (see below), whose sum is σ = 463393518. Its totient is φ = 85418080.

The previous prime is 213545287. The next prime is 213545303. The reversal of 213545300 is 3545312.

213545300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1435204 + 212110096 = 1198^2 + 14564^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213545303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1067627 + ... + 1067826.

Almost surely, 2^213545300 is an apocalyptic number.

213545300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213545300 is an abundant number, since it is smaller than the sum of its proper divisors (249848218).

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

213545300 is a wasteful number, since it uses less digits than its factorization.

213545300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135467 (or 2135460 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 213545300 is about 14613.1892480731. The cubic root of 213545300 is about 597.7184649559.

The spelling of 213545300 in words is "two hundred thirteen million, five hundred forty-five thousand, three hundred".