161883141 has 8 divisors (see below), whose sum is σ = 246679104. Its totient is φ = 92504640.

The previous prime is 161883109. The next prime is 161883157. The reversal of 161883141 is 141388161.

It is a happy number.

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

It is not a de Polignac number, because 161883141 - 2⁵ = 161883109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161883101) 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, 3854340 + ... + 3854381.

It is an arithmetic number, because the mean of its divisors is an integer number (30834888).

Almost surely, 2^161883141 is an apocalyptic number.

It is an amenable number.

161883141 is a deficient number, since it is larger than the sum of its proper divisors (84795963).

161883141 is an equidigital number, since it uses as much as digits as its factorization.

161883141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7708731.

The product of its digits is 4608, while the sum is 33.

The square root of 161883141 is about 12723.3305781152. The cubic root of 161883141 is about 545.0050679887.

The spelling of 161883141 in words is "one hundred sixty-one million, eight hundred eighty-three thousand, one hundred forty-one".