171004013 has 4 divisors (see below), whose sum is σ = 171311580. Its totient is φ = 170696448.

The previous prime is 171003979. The next prime is 171004021. The reversal of 171004013 is 310400171.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310400171 = 53 ⋅5856607.

It can be written as a sum of positive squares in 2 ways, for example, as 40998409 + 130005604 = 6403^2 + 11402^2 .

It is a cyclic number.

It is not a de Polignac number, because 171004013 - 2¹⁶ = 170938477 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 171003982 and 171004000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171004063) 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, 152948 + ... + 154061.

It is an arithmetic number, because the mean of its divisors is an integer number (42827895).

Almost surely, 2^171004013 is an apocalyptic number.

It is an amenable number.

171004013 is a deficient number, since it is larger than the sum of its proper divisors (307567).

171004013 is an equidigital number, since it uses as much as digits as its factorization.

171004013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307566.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 171004013 is about 13076.8502706118. The cubic root of 171004013 is about 555.0542521973.

Adding to 171004013 its reverse (310400171), we get a palindrome (481404184).

The spelling of 171004013 in words is "one hundred seventy-one million, four thousand, thirteen".