617311121 has 8 divisors (see below), whose sum is σ = 742630080. Its totient is φ = 501275088.

The previous prime is 617311117. The next prime is 617311127. The reversal of 617311121 is 121113716.

It is a happy number.

617311121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 617311121 - 2² = 617311117 is a prime.

It is a super-2 number, since 2×617311121² = 762146040220553282, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (617311127) 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, 2320586 + ... + 2320851.

It is an arithmetic number, because the mean of its divisors is an integer number (92828760).

Almost surely, 2^617311121 is an apocalyptic number.

It is an amenable number.

617311121 is a deficient number, since it is larger than the sum of its proper divisors (125318959).

617311121 is a wasteful number, since it uses less digits than its factorization.

617311121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4641463.

The product of its digits is 252, while the sum is 23.

The square root of 617311121 is about 24845.7465373854. The cubic root of 617311121 is about 851.4674172508.

Adding to 617311121 its reverse (121113716), we get a palindrome (738424837).

The spelling of 617311121 in words is "six hundred seventeen million, three hundred eleven thousand, one hundred twenty-one".