161268343 has 4 divisors (see below), whose sum is σ = 161306640. Its totient is φ = 161230048.

The previous prime is 161268329. The next prime is 161268353. The reversal of 161268343 is 343862161.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 343862161 = 5939 ⋅57899.

It is a cyclic number.

It is not a de Polignac number, because 161268343 - 2²¹ = 159171191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161268299 and 161268308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161268353) 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, 11923 + ... + 21556.

It is an arithmetic number, because the mean of its divisors is an integer number (40326660).

Almost surely, 2^161268343 is an apocalyptic number.

161268343 is a deficient number, since it is larger than the sum of its proper divisors (38297).

161268343 is an equidigital number, since it uses as much as digits as its factorization.

161268343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38296.

The product of its digits is 20736, while the sum is 34.

The square root of 161268343 is about 12699.1473335811. The cubic root of 161268343 is about 544.3142546578.

The spelling of 161268343 in words is "one hundred sixty-one million, two hundred sixty-eight thousand, three hundred forty-three".