612213 has 8 divisors (see below), whose sum is σ = 932928. Its totient is φ = 349824.

The previous prime is 612193. The next prime is 612217. The reversal of 612213 is 312216.

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

It is not a de Polignac number, because 612213 - 2⁵ = 612181 is a prime.

It is an Ulam number.

612213 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 612192 and 612201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612217) 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, 14556 + ... + 14597.

It is an arithmetic number, because the mean of its divisors is an integer number (116616).

2⁶¹²²¹³ is an apocalyptic number.

It is an amenable number.

612213 is a deficient number, since it is larger than the sum of its proper divisors (320715).

612213 is a wasteful number, since it uses less digits than its factorization.

612213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29163.

The product of its digits is 72, while the sum is 15.

The square root of 612213 is about 782.4404130667. The cubic root of 612213 is about 84.9116960694.

Adding to 612213 its reverse (312216), we get a palindrome (924429).

The spelling of 612213 in words is "six hundred twelve thousand, two hundred thirteen".