213130 has 8 divisors (see below), whose sum is σ = 383652. Its totient is φ = 85248.

The previous prime is 213119. The next prime is 213131. The reversal of 213130 is 31312.

It can be written as a sum of positive squares in 2 ways, for example, as 205209 + 7921 = 453^2 + 89^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 21313 = 213130 / (2 + 1 + 3 + 1 + 3 + 0).

It is not an unprimeable number, because it can be changed into a prime (213131) 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, 10647 + ... + 10666.

2²¹³¹³⁰ is an apocalyptic number.

213130 is a deficient number, since it is larger than the sum of its proper divisors (170522).

213130 is a wasteful number, since it uses less digits than its factorization.

213130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21320.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 213130 is about 461.6600480873. The cubic root of 213130 is about 59.7330735245.

Adding to 213130 its reverse (31312), we get a palindrome (244442).

It can be divided in two parts, 213 and 130, that added together give a palindrome (343).

The spelling of 213130 in words is "two hundred thirteen thousand, one hundred thirty".