213042 has 8 divisors (see below), whose sum is σ = 426096. Its totient is φ = 71012.

The previous prime is 213029. The next prime is 213043. The reversal of 213042 is 240312.

It is a sphenic number, since it is the product of 3 distinct primes.

213042 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (213043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17748 + ... + 17759.

It is an arithmetic number, because the mean of its divisors is an integer number (53262).

2²¹³⁰⁴² is an apocalyptic number.

213042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

213042 is a wasteful number, since it uses less digits than its factorization.

213042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35512.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 213042 is about 461.5647300217. The cubic root of 213042 is about 59.7248512594.

Adding to 213042 its reverse (240312), we get a palindrome (453354).

The spelling of 213042 in words is "two hundred thirteen thousand, forty-two".