161238341 has 16 divisors (see below), whose sum is σ = 184515840. Its totient is φ = 139567680.

The previous prime is 161238317. The next prime is 161238379. The reversal of 161238341 is 143832161.

It is a cyclic number.

It is not a de Polignac number, because 161238341 - 2⁶ = 161238277 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161238641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14915 + ... + 23343.

It is an arithmetic number, because the mean of its divisors is an integer number (11532240).

Almost surely, 2^161238341 is an apocalyptic number.

161238341 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

161238341 is a deficient number, since it is larger than the sum of its proper divisors (23277499).

161238341 is a wasteful number, since it uses less digits than its factorization.

161238341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8524.

The product of its digits is 3456, while the sum is 29.

The square root of 161238341 is about 12697.9660182251. The cubic root of 161238341 is about 544.2804982309.

The spelling of 161238341 in words is "one hundred sixty-one million, two hundred thirty-eight thousand, three hundred forty-one".