161952159 has 8 divisors (see below), whose sum is σ = 216316672. Its totient is φ = 107777880.

The previous prime is 161952157. The next prime is 161952163. The reversal of 161952159 is 951259161.

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

It is not a de Polignac number, because 161952159 - 2¹ = 161952157 is a prime.

It is a super-2 number, since 2×161952159² = 52457003609522562, 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 (161952151) 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, 45559 + ... + 48984.

It is an arithmetic number, because the mean of its divisors is an integer number (27039584).

Almost surely, 2^161952159 is an apocalyptic number.

161952159 is a deficient number, since it is larger than the sum of its proper divisors (54364513).

161952159 is an equidigital number, since it uses as much as digits as its factorization.

161952159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95117.

The product of its digits is 24300, while the sum is 39.

The square root of 161952159 is about 12726.0425506125. The cubic root of 161952159 is about 545.0825103032.

The spelling of 161952159 in words is "one hundred sixty-one million, nine hundred fifty-two thousand, one hundred fifty-nine".