213043542 has 32 divisors (see below), whose sum is σ = 452977920. Its totient is φ = 66607200.

The previous prime is 213043531. The next prime is 213043547. The reversal of 213043542 is 245340312.

213043542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213043547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2263 + ... + 20765.

It is an arithmetic number, because the mean of its divisors is an integer number (14155560).

Almost surely, 2^213043542 is an apocalyptic number.

213043542 is an abundant number, since it is smaller than the sum of its proper divisors (239934378).

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

213043542 is a wasteful number, since it uses less digits than its factorization.

213043542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18628.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 213043542 is about 14596.0111674389. The cubic root of 213043542 is about 597.2499535538.

Adding to 213043542 its reverse (245340312), we get a palindrome (458383854).

The spelling of 213043542 in words is "two hundred thirteen million, forty-three thousand, five hundred forty-two".