171381061 has 4 divisors (see below), whose sum is σ = 171748512. Its totient is φ = 171013612.

The previous prime is 171381059. The next prime is 171381127. The reversal of 171381061 is 160183171.

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 171381061 - 2¹ = 171381059 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 (171381031) 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, 183025 + ... + 183958.

It is an arithmetic number, because the mean of its divisors is an integer number (42937128).

Almost surely, 2^171381061 is an apocalyptic number.

It is an amenable number.

171381061 is a deficient number, since it is larger than the sum of its proper divisors (367451).

171381061 is an equidigital number, since it uses as much as digits as its factorization.

171381061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367450.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 171381061 is about 13091.2589539738. The cubic root of 171381061 is about 555.4619004630.

The spelling of 171381061 in words is "one hundred seventy-one million, three hundred eighty-one thousand, sixty-one".