613172117 has 6 divisors (see below), whose sum is σ = 621935094. Its totient is φ = 604530920.

The previous prime is 613172057. The next prime is 613172137. The reversal of 613172117 is 711271316.

It can be written as a sum of positive squares in only one way, i.e., 325225156 + 287946961 = 18034^2 + 16969^2 .

It is not a de Polignac number, because 613172117 - 2¹⁴ = 613155733 is a prime.

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 613172117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613172137) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55778 + ... + 65859.

It is an arithmetic number, because the mean of its divisors is an integer number (103655849).

Almost surely, 2^613172117 is an apocalyptic number.

It is an amenable number.

613172117 is a deficient number, since it is larger than the sum of its proper divisors (8762977).

613172117 is an equidigital number, since it uses as much as digits as its factorization.

613172117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121779 (or 121708 counting only the distinct ones).

The product of its digits is 1764, while the sum is 29.

The square root of 613172117 is about 24762.3124324042. The cubic root of 613172117 is about 849.5601493611.

The spelling of 613172117 in words is "six hundred thirteen million, one hundred seventy-two thousand, one hundred seventeen".