161331341 has 4 divisors (see below), whose sum is σ = 161716800. Its totient is φ = 160945884.

The previous prime is 161331329. The next prime is 161331349. The reversal of 161331341 is 143133161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 161331341 - 2¹⁴ = 161314957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161331349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192101 + ... + 192938.

It is an arithmetic number, because the mean of its divisors is an integer number (40429200).

Almost surely, 2^161331341 is an apocalyptic number.

It is an amenable number.

161331341 is a deficient number, since it is larger than the sum of its proper divisors (385459).

161331341 is an equidigital number, since it uses as much as digits as its factorization.

161331341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385458.

The product of its digits is 648, while the sum is 23.

The square root of 161331341 is about 12701.6274941442. The cubic root of 161331341 is about 544.3851225554.

The spelling of 161331341 in words is "one hundred sixty-one million, three hundred thirty-one thousand, three hundred forty-one".