613431 has 36 divisors (see below), whose sum is σ = 1120392. Its totient is φ = 320544.

The previous prime is 613427. The next prime is 613439. The reversal of 613431 is 134316.

It is not a de Polignac number, because 613431 - 2² = 613427 is a prime.

It is a super-2 number, since 2×613431² = 752595183522, which contains 22 as substring.

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 613431.

It is not an unprimeable number, because it can be changed into a prime (613439) 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 35 ways as a sum of consecutive naturals, for example, 5680 + ... + 5786.

It is an arithmetic number, because the mean of its divisors is an integer number (31122).

2⁶¹³⁴³¹ is an apocalyptic number.

613431 is a deficient number, since it is larger than the sum of its proper divisors (506961).

613431 is a wasteful number, since it uses less digits than its factorization.

613431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140 (or 130 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 613431 is about 783.2183603568. The cubic root of 613431 is about 84.9679694770.

Adding to 613431 its reverse (134316), we get a palindrome (747747).

The spelling of 613431 in words is "six hundred thirteen thousand, four hundred thirty-one".