28135113 has 8 divisors (see below), whose sum is σ = 37546176. Its totient is φ = 18740400.

The previous prime is 28135111. The next prime is 28135147. The reversal of 28135113 is 31153182.

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

It is not a de Polignac number, because 28135113 - 2¹ = 28135111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28135111) 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, 748 + ... + 7538.

It is an arithmetic number, because the mean of its divisors is an integer number (4693272).

Almost surely, 2^28135113 is an apocalyptic number.

It is an amenable number.

28135113 is a deficient number, since it is larger than the sum of its proper divisors (9411063).

28135113 is a wasteful number, since it uses less digits than its factorization.

28135113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8175.

The product of its digits is 720, while the sum is 24.

The square root of 28135113 is about 5304.2542359883. The cubic root of 28135113 is about 304.1465453715.

Adding to 28135113 its reverse (31153182), we get a palindrome (59288295).

It can be divided in two parts, 281351 and 13, that multiplied together give a palindrome (3657563).

The spelling of 28135113 in words is "twenty-eight million, one hundred thirty-five thousand, one hundred thirteen".