161353159 has 4 divisors (see below), whose sum is σ = 176021640. Its totient is φ = 146684680.

The previous prime is 161353151. The next prime is 161353183. The reversal of 161353159 is 951353161.

It is a happy number.

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 161353159 - 2³ = 161353151 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 (161353151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7334224 + ... + 7334245.

It is an arithmetic number, because the mean of its divisors is an integer number (44005410).

Almost surely, 2^161353159 is an apocalyptic number.

161353159 is a deficient number, since it is larger than the sum of its proper divisors (14668481).

161353159 is a wasteful number, since it uses less digits than its factorization.

161353159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14668480.

The product of its digits is 12150, while the sum is 34.

The square root of 161353159 is about 12702.4863314235. The cubic root of 161353159 is about 544.4096618238.

The spelling of 161353159 in words is "one hundred sixty-one million, three hundred fifty-three thousand, one hundred fifty-nine".