161041223 has 8 divisors (see below), whose sum is σ = 187963392. Its totient is φ = 135098136.

The previous prime is 161041213. The next prime is 161041247. The reversal of 161041223 is 322140161.

161041223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161041223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161041195 and 161041204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161041213) 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, 244415 + ... + 245072.

It is an arithmetic number, because the mean of its divisors is an integer number (23495424).

Almost surely, 2^161041223 is an apocalyptic number.

161041223 is a deficient number, since it is larger than the sum of its proper divisors (26922169).

161041223 is an equidigital number, since it uses as much as digits as its factorization.

161041223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489541.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 161041223 is about 12690.2018502465. The cubic root of 161041223 is about 544.0586088365.

Adding to 161041223 its reverse (322140161), we get a palindrome (483181384).

The spelling of 161041223 in words is "one hundred sixty-one million, forty-one thousand, two hundred twenty-three".