108028161 has 20 divisors (see below), whose sum is σ = 166943700. Its totient is φ = 69533856.

The previous prime is 108028157. The next prime is 108028201. The reversal of 108028161 is 161820801.

It can be written as a sum of positive squares in 2 ways, for example, as 20250000 + 87778161 = 4500^2 + 9369^2 .

It is not a de Polignac number, because 108028161 - 2² = 108028157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (108028121) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 20646 + ... + 25343.

It is an arithmetic number, because the mean of its divisors is an integer number (8347185).

Almost surely, 2^108028161 is an apocalyptic number.

It is an amenable number.

108028161 is a deficient number, since it is larger than the sum of its proper divisors (58915539).

108028161 is an equidigital number, since it uses as much as digits as its factorization.

108028161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46030 (or 46021 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 108028161 is about 10393.6596538467. The cubic root of 108028161 is about 476.2617034758.

Adding to 108028161 its reverse (161820801), we get a palindrome (269848962).

It can be divided in two parts, 1080 and 28161, that added together give a square (29241 = 171²).

The spelling of 108028161 in words is "one hundred eight million, twenty-eight thousand, one hundred sixty-one".