171553045 has 16 divisors (see below), whose sum is σ = 211348080. Its totient is φ = 133632000.

The previous prime is 171553037. The next prime is 171553051. The reversal of 171553045 is 540355171.

It can be written as a sum of positive squares in 8 ways, for example, as 10745284 + 160807761 = 3278^2 + 12681^2 .

It is not a de Polignac number, because 171553045 - 2³ = 171553037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 171552998 and 171553016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28021 + ... + 33589.

It is an arithmetic number, because the mean of its divisors is an integer number (13209255).

Almost surely, 2^171553045 is an apocalyptic number.

It is an amenable number.

171553045 is a deficient number, since it is larger than the sum of its proper divisors (39795035).

171553045 is a wasteful number, since it uses less digits than its factorization.

171553045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5736.

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 171553045 is about 13097.8259646401. The cubic root of 171553045 is about 555.6476437051.

The spelling of 171553045 in words is "one hundred seventy-one million, five hundred fifty-three thousand, forty-five".