109133028 has 24 divisors (see below), whose sum is σ = 282937760. Its totient is φ = 36377640.

The previous prime is 109133023. The next prime is 109133033. The reversal of 109133028 is 820331901.

It is an interprime number because it is at equal distance from previous prime (109133023) and next prime (109133033).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 109132992 and 109133010.

It is not an unprimeable number, because it can be changed into a prime (109133023) 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, 505138 + ... + 505353.

Almost surely, 2^109133028 is an apocalyptic number.

109133028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

109133028 is an abundant number, since it is smaller than the sum of its proper divisors (173804732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109133028 is a wasteful number, since it uses less digits than its factorization.

109133028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010504 (or 1010496 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 109133028 is about 10446.6754520278. The cubic root of 109133028 is about 477.8798680385.

Adding to 109133028 its reverse (820331901), we get a palindrome (929464929).

The spelling of 109133028 in words is "one hundred nine million, one hundred thirty-three thousand, twenty-eight".