5731613 has 4 divisors (see below), whose sum is σ = 5744508. Its totient is φ = 5718720.

The previous prime is 5731591. The next prime is 5731619. The reversal of 5731613 is 3161375.

It is a happy number.

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 1249924 + 4481689 = 1118^2 + 2117^2 .

It is a cyclic number.

It is not a de Polignac number, because 5731613 - 2⁶ = 5731549 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5731619) 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, 5756 + ... + 6677.

It is an arithmetic number, because the mean of its divisors is an integer number (1436127).

Almost surely, 2^5731613 is an apocalyptic number.

It is an amenable number.

5731613 is a deficient number, since it is larger than the sum of its proper divisors (12895).

5731613 is a wasteful number, since it uses less digits than its factorization.

5731613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12894.

The product of its digits is 1890, while the sum is 26.

The square root of 5731613 is about 2394.0787372181. The cubic root of 5731613 is about 178.9612287677.

Adding to 5731613 its reverse (3161375), we get a palindrome (8892988).

The spelling of 5731613 in words is "five million, seven hundred thirty-one thousand, six hundred thirteen".