161365341 has 4 divisors (see below), whose sum is σ = 215153792. Its totient is φ = 107576892.

The previous prime is 161365339. The next prime is 161365427. The reversal of 161365341 is 143563161.

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 not a de Polignac number, because 161365341 - 2¹ = 161365339 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161365299 and 161365308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161365331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26894221 + ... + 26894226.

It is an arithmetic number, because the mean of its divisors is an integer number (53788448).

Almost surely, 2^161365341 is an apocalyptic number.

It is an amenable number.

161365341 is a deficient number, since it is larger than the sum of its proper divisors (53788451).

161365341 is an equidigital number, since it uses as much as digits as its factorization.

161365341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53788450.

The product of its digits is 6480, while the sum is 30.

The square root of 161365341 is about 12702.9658347962. The cubic root of 161365341 is about 544.4233622716.

The spelling of 161365341 in words is "one hundred sixty-one million, three hundred sixty-five thousand, three hundred forty-one".