613507231 has 8 divisors (see below), whose sum is σ = 630491904. Its totient is φ = 596618880.

The previous prime is 613507217. The next prime is 613507319. The reversal of 613507231 is 132705316.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 613507231 - 2¹³ = 613499039 is a prime.

It is a super-2 number, since 2×613507231² = 752782244978574722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 613507231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613507331) 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, 11071 + ... + 36736.

It is an arithmetic number, because the mean of its divisors is an integer number (78811488).

Almost surely, 2^613507231 is an apocalyptic number.

613507231 is a deficient number, since it is larger than the sum of its proper divisors (16984673).

613507231 is a wasteful number, since it uses less digits than its factorization.

613507231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48161.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 613507231 is about 24769.0781217227. The cubic root of 613507231 is about 849.7148898451.

The spelling of 613507231 in words is "six hundred thirteen million, five hundred seven thousand, two hundred thirty-one".