171024661 has 4 divisors (see below), whose sum is σ = 171352192. Its totient is φ = 170697132.

The previous prime is 171024611. The next prime is 171024671. The reversal of 171024661 is 166420171.

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 171024661 - 2¹⁵ = 170991893 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 (171024611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162981 + ... + 164026.

It is an arithmetic number, because the mean of its divisors is an integer number (42838048).

Almost surely, 2^171024661 is an apocalyptic number.

It is an amenable number.

171024661 is a deficient number, since it is larger than the sum of its proper divisors (327531).

171024661 is an equidigital number, since it uses as much as digits as its factorization.

171024661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327530.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 171024661 is about 13077.6397335299. The cubic root of 171024661 is about 555.0765914371.

The spelling of 171024661 in words is "one hundred seventy-one million, twenty-four thousand, six hundred sixty-one".