28482161 has 2 divisors, whose sum is σ = 28482162. Its totient is φ = 28482160.

The previous prime is 28482143. The next prime is 28482187. The reversal of 28482161 is 16128482.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26061025 + 2421136 = 5105^2 + 1556^2 .

It is a cyclic number.

It is not a de Polignac number, because 28482161 - 2¹⁴ = 28465777 is a prime.

It is a super-2 number, since 2×28482161² = 1622466990459842, which contains 22 as substring.

It is equal to p_1769522 and since 28482161 and 1769522 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (28482761) 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, 14241080 + 14241081.

It is an arithmetic number, because the mean of its divisors is an integer number (14241081).

Almost surely, 2^28482161 is an apocalyptic number.

It is an amenable number.

28482161 is a deficient number, since it is larger than the sum of its proper divisors (1).

28482161 is an equidigital number, since it uses as much as digits as its factorization.

28482161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6144, while the sum is 32.

The square root of 28482161 is about 5336.8680890575. The cubic root of 28482161 is about 305.3919926274.

The spelling of 28482161 in words is "twenty-eight million, four hundred eighty-two thousand, one hundred sixty-one".