171243061 has 4 divisors (see below), whose sum is σ = 186810624. Its totient is φ = 155675500.

The previous prime is 171243049. The next prime is 171243103. The reversal of 171243061 is 160342171.

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: 160342171 = 11 ⋅14576561.

It is a cyclic number.

It is not a de Polignac number, because 171243061 - 2⁷ = 171242933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171243001) 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, 7783765 + ... + 7783786.

It is an arithmetic number, because the mean of its divisors is an integer number (46702656).

Almost surely, 2^171243061 is an apocalyptic number.

171243061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

171243061 is a deficient number, since it is larger than the sum of its proper divisors (15567563).

171243061 is a wasteful number, since it uses less digits than its factorization.

171243061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15567562.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 171243061 is about 13085.9872000549. The cubic root of 171243061 is about 555.3127701653.

The spelling of 171243061 in words is "one hundred seventy-one million, two hundred forty-three thousand, sixty-one".