171617013 has 6 divisors (see below), whose sum is σ = 247891254. Its totient is φ = 114411336.

The previous prime is 171616937. The next prime is 171617029. The reversal of 171617013 is 310716171.

It can be written as a sum of positive squares in only one way, i.e., 114961284 + 56655729 = 10722^2 + 7527^2 .

It is not a de Polignac number, because 171617013 - 2¹⁴ = 171600629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171617113) 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, 9534270 + ... + 9534287.

It is an arithmetic number, because the mean of its divisors is an integer number (41315209).

Almost surely, 2^171617013 is an apocalyptic number.

It is an amenable number.

171617013 is a deficient number, since it is larger than the sum of its proper divisors (76274241).

171617013 is a wasteful number, since it uses less digits than its factorization.

171617013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19068563 (or 19068560 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 27.

The square root of 171617013 is about 13100.2676690211. The cubic root of 171617013 is about 555.7166976656.

The spelling of 171617013 in words is "one hundred seventy-one million, six hundred seventeen thousand, thirteen".