171463145 has 32 divisors (see below), whose sum is σ = 244823040. Its totient is φ = 112835520.

The previous prime is 171463121. The next prime is 171463157. The reversal of 171463145 is 541364171.

It is not a de Polignac number, because 171463145 - 2²² = 167268841 is a prime.

It is a super-2 number, since 2×171463145² = 58799220186582050, which contains 22 as substring.

It is a Curzon 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 31 ways as a sum of consecutive naturals, for example, 87830 + ... + 89760.

It is an arithmetic number, because the mean of its divisors is an integer number (7650720).

Almost surely, 2^171463145 is an apocalyptic number.

It is an amenable number.

171463145 is a deficient number, since it is larger than the sum of its proper divisors (73359895).

171463145 is a wasteful number, since it uses less digits than its factorization.

171463145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2045.

The product of its digits is 10080, while the sum is 32.

The square root of 171463145 is about 13094.3936476646. The cubic root of 171463145 is about 555.5505669256.

The spelling of 171463145 in words is "one hundred seventy-one million, four hundred sixty-three thousand, one hundred forty-five".