171304013 has 2 divisors, whose sum is σ = 171304014. Its totient is φ = 171304012.

The previous prime is 171304009. The next prime is 171304039. The reversal of 171304013 is 310403171.

It is a happy number.

171304013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132204004 + 39100009 = 11498^2 + 6253^2 .

It is a cyclic number.

It is not a de Polignac number, because 171304013 - 2² = 171304009 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (171304093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85652006 + 85652007.

It is an arithmetic number, because the mean of its divisors is an integer number (85652007).

Almost surely, 2^171304013 is an apocalyptic number.

It is an amenable number.

171304013 is a deficient number, since it is larger than the sum of its proper divisors (1).

171304013 is an equidigital number, since it uses as much as digits as its factorization.

171304013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 171304013 is about 13088.3158962488. The cubic root of 171304013 is about 555.3786480831.

Adding to 171304013 its reverse (310403171), we get a palindrome (481707184).

The spelling of 171304013 in words is "one hundred seventy-one million, three hundred four thousand, thirteen".