171323434 has 4 divisors (see below), whose sum is σ = 256985154. Its totient is φ = 85661716.

The previous prime is 171323423. The next prime is 171323443. The reversal of 171323434 is 434323171.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434323171 = 349 ⋅1244479.

It can be written as a sum of positive squares in only one way, i.e., 127803025 + 43520409 = 11305^2 + 6597^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42830857 + ... + 42830860.

Almost surely, 2^171323434 is an apocalyptic number.

171323434 is a deficient number, since it is larger than the sum of its proper divisors (85661720).

171323434 is an equidigital number, since it uses as much as digits as its factorization.

171323434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85661719.

The product of its digits is 6048, while the sum is 28.

The square root of 171323434 is about 13089.0577964955. The cubic root of 171323434 is about 555.3996353345.

The spelling of 171323434 in words is "one hundred seventy-one million, three hundred twenty-three thousand, four hundred thirty-four".