171738113 has 2 divisors, whose sum is σ = 171738114. Its totient is φ = 171738112.

The previous prime is 171738107. The next prime is 171738157. The reversal of 171738113 is 311837171.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154952704 + 16785409 = 12448^2 + 4097^2 .

It is a cyclic number.

It is not a de Polignac number, because 171738113 - 2¹⁰ = 171737089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 171738113.

It is not a weakly prime, because it can be changed into another prime (171738013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85869056 + 85869057.

It is an arithmetic number, because the mean of its divisors is an integer number (85869057).

Almost surely, 2^171738113 is an apocalyptic number.

It is an amenable number.

171738113 is a deficient number, since it is larger than the sum of its proper divisors (1).

171738113 is an equidigital number, since it uses as much as digits as its factorization.

171738113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3528, while the sum is 32.

The square root of 171738113 is about 13104.8888968965. Note that the first 4 decimals coincide. The cubic root of 171738113 is about 555.8473790938.

The spelling of 171738113 in words is "one hundred seventy-one million, seven hundred thirty-eight thousand, one hundred thirteen".