28565141 has 8 divisors (see below), whose sum is σ = 31673568. Its totient is φ = 25542000.

The previous prime is 28565137. The next prime is 28565153. The reversal of 28565141 is 14156582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28565141 - 2² = 28565137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28565098 and 28565107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28565111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20615 + ... + 21956.

It is an arithmetic number, because the mean of its divisors is an integer number (3959196).

Almost surely, 2^28565141 is an apocalyptic number.

It is an amenable number.

28565141 is a deficient number, since it is larger than the sum of its proper divisors (3108427).

28565141 is a wasteful number, since it uses less digits than its factorization.

28565141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42643.

The product of its digits is 9600, while the sum is 32.

The square root of 28565141 is about 5344.6366574352. The cubic root of 28565141 is about 305.6882816786.

It can be divided in two parts, 2856 and 5141, that added together give a palindrome (7997).

The spelling of 28565141 in words is "twenty-eight million, five hundred sixty-five thousand, one hundred forty-one".