161179087 has 4 divisors (see below), whose sum is σ = 161285896. Its totient is φ = 161072280.

The previous prime is 161179079. The next prime is 161179103. The reversal of 161179087 is 780971161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 161179087 - 2³ = 161179079 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 (161173087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51108 + ... + 54169.

It is an arithmetic number, because the mean of its divisors is an integer number (40321474).

Almost surely, 2^161179087 is an apocalyptic number.

161179087 is a deficient number, since it is larger than the sum of its proper divisors (106809).

161179087 is a wasteful number, since it uses less digits than its factorization.

161179087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106808.

The product of its (nonzero) digits is 21168, while the sum is 40.

The square root of 161179087 is about 12695.6325955031. The cubic root of 161179087 is about 544.2138169277.

The spelling of 161179087 in words is "one hundred sixty-one million, one hundred seventy-nine thousand, eighty-seven".