613144543 has 4 divisors (see below), whose sum is σ = 668884968. Its totient is φ = 557404120.

The previous prime is 613144513. The next prime is 613144577. The reversal of 613144543 is 345441316.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 613144543 - 2¹³ = 613136351 is a prime.

It is a super-2 number, since 2×613144543² = 751892461221357698, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613144513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27870196 + ... + 27870217.

It is an arithmetic number, because the mean of its divisors is an integer number (167221242).

Almost surely, 2^613144543 is an apocalyptic number.

613144543 is a deficient number, since it is larger than the sum of its proper divisors (55740425).

613144543 is a wasteful number, since it uses less digits than its factorization.

613144543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55740424.

The product of its digits is 17280, while the sum is 31.

The square root of 613144543 is about 24761.7556526188. The cubic root of 613144543 is about 849.5474144253.

Adding to 613144543 its reverse (345441316), we get a palindrome (958585859).

The spelling of 613144543 in words is "six hundred thirteen million, one hundred forty-four thousand, five hundred forty-three".