171268449 has 16 divisors (see below), whose sum is σ = 255852480. Its totient is φ = 100992960.

The previous prime is 171268429. The next prime is 171268457. The reversal of 171268449 is 944862171.

It is not a de Polignac number, because 171268449 - 2⁵ = 171268417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 171268449.

It is not an unprimeable number, because it can be changed into a prime (171268429) 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 15 ways as a sum of consecutive naturals, for example, 68914 + ... + 71355.

It is an arithmetic number, because the mean of its divisors is an integer number (15990780).

Almost surely, 2^171268449 is an apocalyptic number.

It is an amenable number.

171268449 is a deficient number, since it is larger than the sum of its proper divisors (84584031).

171268449 is a wasteful number, since it uses less digits than its factorization.

171268449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140320.

The product of its digits is 96768, while the sum is 42.

The square root of 171268449 is about 13086.9572093745. The cubic root of 171268449 is about 555.3402118299.

The spelling of 171268449 in words is "one hundred seventy-one million, two hundred sixty-eight thousand, four hundred forty-nine".