161353223 has 2 divisors, whose sum is σ = 161353224. Its totient is φ = 161353222.

The previous prime is 161353217. The next prime is 161353249. The reversal of 161353223 is 322353161.

It is an a-pointer prime, because the next prime (161353249) can be obtained adding 161353223 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161353223 - 2⁴ = 161353207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 161353192 and 161353201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161313223) 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 as a sum of consecutive naturals, namely, 80676611 + 80676612.

It is an arithmetic number, because the mean of its divisors is an integer number (80676612).

Almost surely, 2^161353223 is an apocalyptic number.

161353223 is a deficient number, since it is larger than the sum of its proper divisors (1).

161353223 is an equidigital number, since it uses as much as digits as its factorization.

161353223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 26.

The square root of 161353223 is about 12702.4888506151. The cubic root of 161353223 is about 544.4097338030.

The spelling of 161353223 in words is "one hundred sixty-one million, three hundred fifty-three thousand, two hundred twenty-three".