161441023 has 2 divisors, whose sum is σ = 161441024. Its totient is φ = 161441022.

The previous prime is 161441017. The next prime is 161441041. The reversal of 161441023 is 320144161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161441023 - 2⁵ = 161440991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 161440985 and 161441003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161441923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80720511 + 80720512.

It is an arithmetic number, because the mean of its divisors is an integer number (80720512).

Almost surely, 2^161441023 is an apocalyptic number.

161441023 is a deficient number, since it is larger than the sum of its proper divisors (1).

161441023 is an equidigital number, since it uses as much as digits as its factorization.

161441023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 161441023 is about 12705.9443962265. The cubic root of 161441023 is about 544.5084623490.

Adding to 161441023 its reverse (320144161), we get a palindrome (481585184).

The spelling of 161441023 in words is "one hundred sixty-one million, four hundred forty-one thousand, twenty-three".