161879359 has 8 divisors (see below), whose sum is σ = 169107840. Its totient is φ = 154666776.

The previous prime is 161879351. The next prime is 161879383. The reversal of 161879359 is 953978161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 161879359 - 2³ = 161879351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161879351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19984 + ... + 26890.

It is an arithmetic number, because the mean of its divisors is an integer number (21138480).

Almost surely, 2^161879359 is an apocalyptic number.

161879359 is a deficient number, since it is larger than the sum of its proper divisors (7228481).

161879359 is a wasteful number, since it uses less digits than its factorization.

161879359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7949.

The product of its digits is 408240, while the sum is 49.

The square root of 161879359 is about 12723.1819526406. The cubic root of 161879359 is about 545.0008237229. Note that the first 3 decimals are identical.

The spelling of 161879359 in words is "one hundred sixty-one million, eight hundred seventy-nine thousand, three hundred fifty-nine".