173129113 has 2 divisors, whose sum is σ = 173129114. Its totient is φ = 173129112.

The previous prime is 173129107. The next prime is 173129129. The reversal of 173129113 is 311921371.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164788569 + 8340544 = 12837^2 + 2888^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-173129113 is a prime.

It is not a weakly prime, because it can be changed into another prime (173129813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86564556 + 86564557.

It is an arithmetic number, because the mean of its divisors is an integer number (86564557).

Almost surely, 2^173129113 is an apocalyptic number.

It is an amenable number.

173129113 is a deficient number, since it is larger than the sum of its proper divisors (1).

173129113 is an equidigital number, since it uses as much as digits as its factorization.

173129113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1134, while the sum is 28.

The square root of 173129113 is about 13157.8536623569. The cubic root of 173129113 is about 557.3440485588.

It can be divided in two parts, 173 and 129113, that added together give a triangular number (129286 = T₅₀₈).

The spelling of 173129113 in words is "one hundred seventy-three million, one hundred twenty-nine thousand, one hundred thirteen".