161159119 has 8 divisors (see below), whose sum is σ = 181872720. Its totient is φ = 141456000.

The previous prime is 161159101. The next prime is 161159143. The reversal of 161159119 is 911951161.

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 161159119 - 2⁹ = 161158607 is a prime.

It is a super-2 number, since 2×161159119² = 51944523273712322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161159419) 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 7 ways as a sum of consecutive naturals, for example, 252282 + ... + 252919.

It is an arithmetic number, because the mean of its divisors is an integer number (22734090).

Almost surely, 2^161159119 is an apocalyptic number.

161159119 is a deficient number, since it is larger than the sum of its proper divisors (20713601).

161159119 is a wasteful number, since it uses less digits than its factorization.

161159119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505241.

The product of its digits is 2430, while the sum is 34.

The square root of 161159119 is about 12694.8461589733. The cubic root of 161159119 is about 544.1913423200.

The spelling of 161159119 in words is "one hundred sixty-one million, one hundred fifty-nine thousand, one hundred nineteen".