161748875 has 16 divisors (see below), whose sum is σ = 203018400. Its totient is φ = 128658400.

The previous prime is 161748869. The next prime is 161748889. The reversal of 161748875 is 578847161.

It is not a de Polignac number, because 161748875 - 2⁴ = 161748859 is a prime.

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, 18761 + ... + 25989.

It is an arithmetic number, because the mean of its divisors is an integer number (12688650).

Almost surely, 2^161748875 is an apocalyptic number.

161748875 is a deficient number, since it is larger than the sum of its proper divisors (41269525).

161748875 is an equidigital number, since it uses as much as digits as its factorization.

161748875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7423 (or 7413 counting only the distinct ones).

The product of its digits is 376320, while the sum is 47.

The square root of 161748875 is about 12718.0531135862. The cubic root of 161748875 is about 544.8543504402.

The spelling of 161748875 in words is "one hundred sixty-one million, seven hundred forty-eight thousand, eight hundred seventy-five".