28125106 has 32 divisors (see below), whose sum is σ = 46621440. Its totient is φ = 12669696.

The previous prime is 28125103. The next prime is 28125107. The reversal of 28125106 is 60152182.

It is a super-2 number, since 2×28125106² = 1582043175022472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28125103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99241 + ... + 99523.

It is an arithmetic number, because the mean of its divisors is an integer number (1456920).

Almost surely, 2^28125106 is an apocalyptic number.

28125106 is a deficient number, since it is larger than the sum of its proper divisors (18496334).

28125106 is a wasteful number, since it uses less digits than its factorization.

28125106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 28125106 is about 5303.3108526655. The cubic root of 28125106 is about 304.1104818306.

Adding to 28125106 its reverse (60152182), we get a palindrome (88277288).

The spelling of 28125106 in words is "twenty-eight million, one hundred twenty-five thousand, one hundred six".