654213 has 8 divisors (see below), whose sum is σ = 996928. Its totient is φ = 373824.

The previous prime is 654209. The next prime is 654221. The reversal of 654213 is 312456.

It is a happy number.

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

It is not a de Polignac number, because 654213 - 2² = 654209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 31153 = 654213 / (6 + 5 + 4 + 2 + 1 + 3).

It is a Duffinian number.

654213 is a lucky number.

It is a zygodrome in base 6.

It is a self number, because there is not a number n which added to its sum of digits gives 654213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654223) 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, 15556 + ... + 15597.

It is an arithmetic number, because the mean of its divisors is an integer number (124616).

2⁶⁵⁴²¹³ is an apocalyptic number.

It is an amenable number.

654213 is a deficient number, since it is larger than the sum of its proper divisors (342715).

654213 is a wasteful number, since it uses less digits than its factorization.

654213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31163.

The product of its digits is 720, while the sum is 21.

The square root of 654213 is about 808.8343464517. The cubic root of 654213 is about 86.8106597086.

Adding to 654213 its reverse (312456), we get a palindrome (966669).

It can be divided in two parts, 6542 and 13, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 654213 in words is "six hundred fifty-four thousand, two hundred thirteen".