171099349 has 4 divisors (see below), whose sum is σ = 172124064. Its totient is φ = 170074636.

The previous prime is 171099329. The next prime is 171099413. The reversal of 171099349 is 943990171.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 171099349 - 2⁷ = 171099221 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 (171099319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 512107 + ... + 512440.

It is an arithmetic number, because the mean of its divisors is an integer number (43031016).

Almost surely, 2^171099349 is an apocalyptic number.

It is an amenable number.

171099349 is a deficient number, since it is larger than the sum of its proper divisors (1024715).

171099349 is a wasteful number, since it uses less digits than its factorization.

171099349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024714.

The product of its (nonzero) digits is 61236, while the sum is 43.

The square root of 171099349 is about 13080.4949829890. The cubic root of 171099349 is about 555.1573819826.

The spelling of 171099349 in words is "one hundred seventy-one million, ninety-nine thousand, three hundred forty-nine".