613245 has 8 divisors (see below), whose sum is σ = 981216. Its totient is φ = 327056.

The previous prime is 613243. The next prime is 613247. The reversal of 613245 is 542316.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (613243) and next prime (613247).

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 613245 - 2¹ = 613243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20427 + ... + 20456.

It is an arithmetic number, because the mean of its divisors is an integer number (122652).

2⁶¹³²⁴⁵ is an apocalyptic number.

It is an amenable number.

613245 is a deficient number, since it is larger than the sum of its proper divisors (367971).

613245 is a wasteful number, since it uses less digits than its factorization.

613245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40891.

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

The square root of 613245 is about 783.0996105222. The cubic root of 613245 is about 84.9593808230.

It can be divided in two parts, 613 and 245, that added together give a palindrome (858).

The spelling of 613245 in words is "six hundred thirteen thousand, two hundred forty-five".