109128790 has 32 divisors (see below), whose sum is σ = 205571520. Its totient is φ = 41631744.

The previous prime is 109128751. The next prime is 109128793. The reversal of 109128790 is 97821901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109128793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141526 + ... + 142294.

It is an arithmetic number, because the mean of its divisors is an integer number (6424110).

Almost surely, 2^109128790 is an apocalyptic number.

109128790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

109128790 is a deficient number, since it is larger than the sum of its proper divisors (96442730).

109128790 is a wasteful number, since it uses less digits than its factorization.

109128790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416.

The product of its (nonzero) digits is 9072, while the sum is 37.

The square root of 109128790 is about 10446.4726104078. The cubic root of 109128790 is about 477.8736820679.

The spelling of 109128790 in words is "one hundred nine million, one hundred twenty-eight thousand, seven hundred ninety".