613212 has 24 divisors (see below), whose sum is σ = 1445136. Its totient is φ = 202368.

The previous prime is 613199. The next prime is 613213. The reversal of 613212 is 212316.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 613191 and 613200.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 613212.

It is not an unprimeable number, because it can be changed into a prime (613213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1458 + ... + 1830.

It is an arithmetic number, because the mean of its divisors is an integer number (60214).

2⁶¹³²¹² is an apocalyptic number.

It is an amenable number.

613212 is an abundant number, since it is smaller than the sum of its proper divisors (831924).

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

613212 is a wasteful number, since it uses less digits than its factorization.

613212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517 (or 515 counting only the distinct ones).

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

The square root of 613212 is about 783.0785401223. The cubic root of 613212 is about 84.9578568481.

Adding to 613212 its reverse (212316), we get a palindrome (825528).

The spelling of 613212 in words is "six hundred thirteen thousand, two hundred twelve".