171797453 has 4 divisors (see below), whose sum is σ = 171832320. Its totient is φ = 171762588.

The previous prime is 171797413. The next prime is 171797491. The reversal of 171797453 is 354797171.

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, and also an emirpimes, since its reverse is a distinct semiprime: 354797171 = 43 ⋅8251097.

It is a cyclic number.

It is not a de Polignac number, because 171797453 - 2¹² = 171793357 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 (171797413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8525 + ... + 20402.

It is an arithmetic number, because the mean of its divisors is an integer number (42958080).

Almost surely, 2^171797453 is an apocalyptic number.

It is an amenable number.

171797453 is a deficient number, since it is larger than the sum of its proper divisors (34867).

171797453 is an equidigital number, since it uses as much as digits as its factorization.

171797453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34866.

The product of its digits is 185220, while the sum is 44.

The square root of 171797453 is about 13107.1527419192. The cubic root of 171797453 is about 555.9113916469.

The spelling of 171797453 in words is "one hundred seventy-one million, seven hundred ninety-seven thousand, four hundred fifty-three".