109032138 has 24 divisors (see below), whose sum is σ = 236600676. Its totient is φ = 36288000.

The previous prime is 109032109. The next prime is 109032139. The reversal of 109032138 is 831230901.

It can be written as a sum of positive squares in 2 ways, for example, as 107806689 + 1225449 = 10383^2 + 1107^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (109032139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8298 + ... + 16938.

Almost surely, 2^109032138 is an apocalyptic number.

109032138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

109032138 is an abundant number, since it is smaller than the sum of its proper divisors (127568538).

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

109032138 is a wasteful number, since it uses less digits than its factorization.

109032138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9350 (or 9347 counting only the distinct ones).

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

The square root of 109032138 is about 10441.8455265341. The cubic root of 109032138 is about 477.7325610755.

It can be divided in two parts, 10903 and 2138, that added together give a triangular number (13041 = T₁₆₁).

The spelling of 109032138 in words is "one hundred nine million, thirty-two thousand, one hundred thirty-eight".