171241393 has 4 divisors (see below), whose sum is σ = 171321328. Its totient is φ = 171161460.

The previous prime is 171241381. The next prime is 171241397. The reversal of 171241393 is 393142171.

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: 393142171 = 1423 ⋅276277.

It is a cyclic number.

It is not a de Polignac number, because 171241393 - 2¹³ = 171233201 is a prime.

It is a super-2 number, since 2×171241393² = 58647229353160898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (171241397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36663 + ... + 41068.

It is an arithmetic number, because the mean of its divisors is an integer number (42830332).

Almost surely, 2^171241393 is an apocalyptic number.

It is an amenable number.

171241393 is a deficient number, since it is larger than the sum of its proper divisors (79935).

171241393 is an equidigital number, since it uses as much as digits as its factorization.

171241393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79934.

The product of its digits is 4536, while the sum is 31.

The square root of 171241393 is about 13085.9234676044. The cubic root of 171241393 is about 555.3109671439.

The spelling of 171241393 in words is "one hundred seventy-one million, two hundred forty-one thousand, three hundred ninety-three".