72833161 has 2 divisors, whose sum is σ = 72833162. Its totient is φ = 72833160.

The previous prime is 72833153. The next prime is 72833171. The reversal of 72833161 is 16133827.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61136761 + 11696400 = 7819^2 + 3420^2 .

It is a cyclic number.

It is not a de Polignac number, because 72833161 - 2³ = 72833153 is a prime.

It is not a weakly prime, because it can be changed into another prime (72833171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36416580 + 36416581.

It is an arithmetic number, because the mean of its divisors is an integer number (36416581).

Almost surely, 2^72833161 is an apocalyptic number.

It is an amenable number.

72833161 is a deficient number, since it is larger than the sum of its proper divisors (1).

72833161 is an equidigital number, since it uses as much as digits as its factorization.

72833161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 31.

The square root of 72833161 is about 8534.2346464109. The cubic root of 72833161 is about 417.6152855521.

Adding to 72833161 its reverse (16133827), we get a palindrome (88966988).

The spelling of 72833161 in words is "seventy-two million, eight hundred thirty-three thousand, one hundred sixty-one".