213051 has 8 divisors (see below), whose sum is σ = 290304. Its totient is φ = 138920.

The previous prime is 213043. The next prime is 213067. The reversal of 213051 is 150312.

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

It is a cyclic number.

It is not a de Polignac number, because 213051 - 2³ = 213043 is a prime.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (213091) 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, 615 + ... + 896.

It is an arithmetic number, because the mean of its divisors is an integer number (36288).

2²¹³⁰⁵¹ is an apocalyptic number.

213051 is a deficient number, since it is larger than the sum of its proper divisors (77253).

213051 is a wasteful number, since it uses less digits than its factorization.

213051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 213051 is about 461.5744793638. The cubic root of 213051 is about 59.7256922768.

Adding to 213051 its reverse (150312), we get a palindrome (363363).

The spelling of 213051 in words is "two hundred thirteen thousand, fifty-one".