161832153 has 12 divisors (see below), whose sum is σ = 251005200. Its totient is φ = 92475432.

The previous prime is 161832149. The next prime is 161832157. The reversal of 161832153 is 351238161.

It is an interprime number because it is at equal distance from previous prime (161832149) and next prime (161832157).

It is not a de Polignac number, because 161832153 - 2² = 161832149 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 161832153.

It is not an unprimeable number, because it can be changed into a prime (161832157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 550303 + ... + 550596.

It is an arithmetic number, because the mean of its divisors is an integer number (20917100).

Almost surely, 2^161832153 is an apocalyptic number.

It is an amenable number.

161832153 is a deficient number, since it is larger than the sum of its proper divisors (89173047).

161832153 is a wasteful number, since it uses less digits than its factorization.

161832153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100916 (or 1100909 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 161832153 is about 12721.3266996803. The cubic root of 161832153 is about 544.9478422717.

It can be divided in two parts, 16183 and 2153, that added together give a triangular number (18336 = T₁₉₁).

The spelling of 161832153 in words is "one hundred sixty-one million, eight hundred thirty-two thousand, one hundred fifty-three".