613504163 has 8 divisors (see below), whose sum is σ = 616896000. Its totient is φ = 610121160.

The previous prime is 613504147. The next prime is 613504183. The reversal of 613504163 is 361405316.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 613504163 - 2⁴ = 613504147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (613504103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173588 + ... + 177086.

It is an arithmetic number, because the mean of its divisors is an integer number (77112000).

Almost surely, 2^613504163 is an apocalyptic number.

613504163 is a deficient number, since it is larger than the sum of its proper divisors (3391837).

613504163 is a wasteful number, since it uses less digits than its factorization.

613504163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4417.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 613504163 is about 24769.0161895865. The cubic root of 613504163 is about 849.7134734371.

Adding to 613504163 its reverse (361405316), we get a palindrome (974909479).

The spelling of 613504163 in words is "six hundred thirteen million, five hundred four thousand, one hundred sixty-three".