275172105 has 32 divisors (see below), whose sum is σ = 474969600. Its totient is φ = 135233280.

The previous prime is 275172103. The next prime is 275172109. The reversal of 275172105 is 501271572.

It is not a de Polignac number, because 275172105 - 2¹ = 275172103 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (275172101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 176871 + ... + 178419.

It is an arithmetic number, because the mean of its divisors is an integer number (14842800).

Almost surely, 2^275172105 is an apocalyptic number.

It is an amenable number.

275172105 is a deficient number, since it is larger than the sum of its proper divisors (199797495).

275172105 is a wasteful number, since it uses less digits than its factorization.

275172105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2481.

The product of its (nonzero) digits is 4900, while the sum is 30.

The square root of 275172105 is about 16588.3123011354. The cubic root of 275172105 is about 650.4313547056.

The spelling of 275172105 in words is "two hundred seventy-five million, one hundred seventy-two thousand, one hundred five".