28103134 has 8 divisors (see below), whose sum is σ = 42219360. Its totient is φ = 14030016.

The previous prime is 28103111. The next prime is 28103177. The reversal of 28103134 is 43130182.

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

It is a super-2 number, since 2×28103134² = 1579572281243912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9094 + ... + 11785.

It is an arithmetic number, because the mean of its divisors is an integer number (5277420).

Almost surely, 2^28103134 is an apocalyptic number.

28103134 is a deficient number, since it is larger than the sum of its proper divisors (14116226).

28103134 is a wasteful number, since it uses less digits than its factorization.

28103134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21554.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 28103134 is about 5301.2389118017. The cubic root of 28103134 is about 304.0312684250.

The spelling of 28103134 in words is "twenty-eight million, one hundred three thousand, one hundred thirty-four".