613441 has 2 divisors, whose sum is σ = 613442. Its totient is φ = 613440.

The previous prime is 613439. The next prime is 613447. The reversal of 613441 is 144316.

613441 = T₆₃₈ + T₆₃₉ + T₆₄₀.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 608400 + 5041 = 780^2 + 71^2 .

It is a cyclic number.

It is not a de Polignac number, because 613441 - 2¹ = 613439 is a prime.

Together with 613439, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (613447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306720 + 306721.

It is an arithmetic number, because the mean of its divisors is an integer number (306721).

2⁶¹³⁴⁴¹ is an apocalyptic number.

613441 is the 640-th centered triangular number.

It is an amenable number.

613441 is a deficient number, since it is larger than the sum of its proper divisors (1).

613441 is an equidigital number, since it uses as much as digits as its factorization.

613441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 19.

The square root of 613441 is about 783.2247442465. The cubic root of 613441 is about 84.9684311834.

Adding to 613441 its reverse (144316), we get a palindrome (757757).

The spelling of 613441 in words is "six hundred thirteen thousand, four hundred forty-one".