213243060 has 24 divisors (see below), whose sum is σ = 597080736. Its totient is φ = 56864800.

The previous prime is 213243049. The next prime is 213243067. The reversal of 213243060 is 60342312.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213243067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1776966 + ... + 1777085.

It is an arithmetic number, because the mean of its divisors is an integer number (24878364).

Almost surely, 2^213243060 is an apocalyptic number.

213243060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213243060 is an abundant number, since it is smaller than the sum of its proper divisors (383837676).

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

213243060 is a wasteful number, since it uses less digits than its factorization.

213243060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3554063 (or 3554061 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 213243060 is about 14602.8442435027. The cubic root of 213243060 is about 597.4363394533.

Adding to 213243060 its reverse (60342312), we get a palindrome (273585372).

The spelling of 213243060 in words is "two hundred thirteen million, two hundred forty-three thousand, sixty".