161280833 has 16 divisors (see below), whose sum is σ = 187125120. Its totient is φ = 136152576.

The previous prime is 161280827. The next prime is 161280877. The reversal of 161280833 is 338082161.

It is a happy number.

161280833 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 161280833 - 2¹² = 161276737 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 161280833.

It is not an unprimeable number, because it can be changed into a prime (161280893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182210 + ... + 183092.

It is an arithmetic number, because the mean of its divisors is an integer number (11695320).

Almost surely, 2^161280833 is an apocalyptic number.

It is an amenable number.

161280833 is a deficient number, since it is larger than the sum of its proper divisors (25844287).

161280833 is an equidigital number, since it uses as much as digits as its factorization.

161280833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 161280833 is about 12699.6390893600. The cubic root of 161280833 is about 544.3283064123.

The spelling of 161280833 in words is "one hundred sixty-one million, two hundred eighty thousand, eight hundred thirty-three".