161679275 has 6 divisors (see below), whose sum is σ = 200482332. Its totient is φ = 129343400.

The previous prime is 161679209. The next prime is 161679313. The reversal of 161679275 is 572976161.

161679275 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 161679275 - 2¹² = 161675179 is a prime.

It is a super-2 number, since 2×161679275² = 52280375929051250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3233561 + ... + 3233610.

It is an arithmetic number, because the mean of its divisors is an integer number (33413722).

Almost surely, 2^161679275 is an apocalyptic number.

161679275 is a deficient number, since it is larger than the sum of its proper divisors (38803057).

161679275 is an equidigital number, since it uses as much as digits as its factorization.

161679275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6467181 (or 6467176 counting only the distinct ones).

The product of its digits is 158760, while the sum is 44.

The square root of 161679275 is about 12715.3165513093. The cubic root of 161679275 is about 544.7761895601.

The spelling of 161679275 in words is "one hundred sixty-one million, six hundred seventy-nine thousand, two hundred seventy-five".