613241 has 4 divisors (see below), whose sum is σ = 649332. Its totient is φ = 577152.

The previous prime is 613231. The next prime is 613243. The reversal of 613241 is 142316.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 525625 + 87616 = 725^2 + 296^2 .

It is a cyclic number.

It is not a de Polignac number, because 613241 - 2⁶ = 613177 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 36073 = 613241 / (6 + 1 + 3 + 2 + 4 + 1).

It is a Curzon number.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18020 + ... + 18053.

It is an arithmetic number, because the mean of its divisors is an integer number (162333).

2⁶¹³²⁴¹ is an apocalyptic number.

It is an amenable number.

613241 is a deficient number, since it is larger than the sum of its proper divisors (36091).

613241 is a wasteful number, since it uses less digits than its factorization.

613241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36090.

The product of its digits is 144, while the sum is 17.

The square root of 613241 is about 783.0970565645. The cubic root of 613241 is about 84.9591961017.

Adding to 613241 its reverse (142316), we get a palindrome (755557).

The spelling of 613241 in words is "six hundred thirteen thousand, two hundred forty-one".