171148013 has 4 divisors (see below), whose sum is σ = 171543708. Its totient is φ = 170752320.

The previous prime is 171148001. The next prime is 171148031. The reversal of 171148013 is 310841171.

171148013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 84695209 + 86452804 = 9203^2 + 9298^2 .

It is a cyclic number.

It is not a de Polignac number, because 171148013 - 2⁴ = 171147997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171148093) 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, 197198 + ... + 198063.

It is an arithmetic number, because the mean of its divisors is an integer number (42885927).

Almost surely, 2^171148013 is an apocalyptic number.

It is an amenable number.

171148013 is a deficient number, since it is larger than the sum of its proper divisors (395695).

171148013 is an equidigital number, since it uses as much as digits as its factorization.

171148013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395694.

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 171148013 is about 13082.3550249945. The cubic root of 171148013 is about 555.2100095312.

Adding to 171148013 its reverse (310841171), we get a palindrome (481989184).

The spelling of 171148013 in words is "one hundred seventy-one million, one hundred forty-eight thousand, thirteen".