161379875 has 16 divisors (see below), whose sum is σ = 201805344. Its totient is φ = 128845600.

The previous prime is 161379871. The next prime is 161379887. The reversal of 161379875 is 578973161.

It is not a de Polignac number, because 161379875 - 2² = 161379871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161379871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83672 + ... + 85578.

It is an arithmetic number, because the mean of its divisors is an integer number (12612834).

Almost surely, 2^161379875 is an apocalyptic number.

161379875 is a deficient number, since it is larger than the sum of its proper divisors (40425469).

161379875 is an equidigital number, since it uses as much as digits as its factorization.

161379875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2599 (or 2589 counting only the distinct ones).

The product of its digits is 317520, while the sum is 47.

The square root of 161379875 is about 12703.5378930438. The cubic root of 161379875 is about 544.4397069867.

The spelling of 161379875 in words is "one hundred sixty-one million, three hundred seventy-nine thousand, eight hundred seventy-five".