161829159 has 8 divisors (see below), whose sum is σ = 215848320. Its totient is φ = 107848056.

The previous prime is 161829133. The next prime is 161829191. The reversal of 161829159 is 951928161.

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

It is not a de Polignac number, because 161829159 - 2¹⁷ = 161698087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 161829159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161829119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2622 + ... + 18180.

It is an arithmetic number, because the mean of its divisors is an integer number (26981040).

Almost surely, 2^161829159 is an apocalyptic number.

161829159 is a deficient number, since it is larger than the sum of its proper divisors (54019161).

161829159 is a wasteful number, since it uses less digits than its factorization.

161829159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19029.

The product of its digits is 38880, while the sum is 42.

The square root of 161829159 is about 12721.2090227305. The cubic root of 161829159 is about 544.9444816212.

The spelling of 161829159 in words is "one hundred sixty-one million, eight hundred twenty-nine thousand, one hundred fifty-nine".