171959045 has 8 divisors (see below), whose sum is σ = 206518680. Its totient is φ = 137455360.

The previous prime is 171959023. The next prime is 171959069. The reversal of 171959045 is 540959171.

It can be written as a sum of positive squares in 4 ways, for example, as 1760929 + 170198116 = 1327^2 + 13046^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 171959045 - 2⁸ = 171958789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 171958993 and 171959011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6896 + ... + 19785.

It is an arithmetic number, because the mean of its divisors is an integer number (25814835).

Almost surely, 2^171959045 is an apocalyptic number.

It is an amenable number.

171959045 is a deficient number, since it is larger than the sum of its proper divisors (34559635).

171959045 is a wasteful number, since it uses less digits than its factorization.

171959045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27975.

The product of its (nonzero) digits is 56700, while the sum is 41.

The square root of 171959045 is about 13113.3155609098. The cubic root of 171959045 is about 556.0856330417.

The spelling of 171959045 in words is "one hundred seventy-one million, nine hundred fifty-nine thousand, forty-five".