613311001 has 4 divisors (see below), whose sum is σ = 629887012. Its totient is φ = 596734992.

The previous prime is 613310983. The next prime is 613311011. The reversal of 613311001 is 100113316.

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 549949401 + 63361600 = 23451^2 + 7960^2 .

It is a cyclic number.

It is not a de Polignac number, because 613311001 - 2²¹ = 611213849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (613311011) 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, 8287950 + ... + 8288023.

It is an arithmetic number, because the mean of its divisors is an integer number (157471753).

Almost surely, 2^613311001 is an apocalyptic number.

It is an amenable number.

613311001 is a deficient number, since it is larger than the sum of its proper divisors (16576011).

613311001 is a wasteful number, since it uses less digits than its factorization.

613311001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16576010.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 613311001 is about 24765.1166159176. The cubic root of 613311001 is about 849.6242865483.

Adding to 613311001 its reverse (100113316), we get a palindrome (713424317).

The spelling of 613311001 in words is "six hundred thirteen million, three hundred eleven thousand, one".