161226341 has 4 divisors (see below), whose sum is σ = 166785900. Its totient is φ = 155666784.

The previous prime is 161226337. The next prime is 161226361. The reversal of 161226341 is 143622161.

161226341 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35450116 + 125776225 = 5954^2 + 11215^2 .

It is a cyclic number.

It is not a de Polignac number, because 161226341 - 2² = 161226337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 161226341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161226311) 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, 2779736 + ... + 2779793.

It is an arithmetic number, because the mean of its divisors is an integer number (41696475).

Almost surely, 2^161226341 is an apocalyptic number.

It is an amenable number.

161226341 is a deficient number, since it is larger than the sum of its proper divisors (5559559).

161226341 is an equidigital number, since it uses as much as digits as its factorization.

161226341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5559558.

The product of its digits is 1728, while the sum is 26.

The square root of 161226341 is about 12697.4934928119. The cubic root of 161226341 is about 544.2669953879.

The spelling of 161226341 in words is "one hundred sixty-one million, two hundred twenty-six thousand, three hundred forty-one".