28495141 has 4 divisors (see below), whose sum is σ = 28531692. Its totient is φ = 28458592.

The previous prime is 28495121. The next prime is 28495147. The reversal of 28495141 is 14159482.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20738916 + 7756225 = 4554^2 + 2785^2 .

It is a cyclic number.

It is not a de Polignac number, because 28495141 - 2⁵ = 28495109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28495097 and 28495106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28495147) 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 in 3 ways as a sum of consecutive naturals, for example, 17080 + ... + 18673.

It is an arithmetic number, because the mean of its divisors is an integer number (7132923).

Almost surely, 2^28495141 is an apocalyptic number.

It is an amenable number.

28495141 is a deficient number, since it is larger than the sum of its proper divisors (36551).

28495141 is an equidigital number, since it uses as much as digits as its factorization.

28495141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36550.

The product of its digits is 11520, while the sum is 34.

The square root of 28495141 is about 5338.0840195711. The cubic root of 28495141 is about 305.4383770533.

The spelling of 28495141 in words is "twenty-eight million, four hundred ninety-five thousand, one hundred forty-one".