109012755 has 32 divisors (see below), whose sum is σ = 192720384. Its totient is φ = 52338176.

The previous prime is 109012751. The next prime is 109012759. The reversal of 109012755 is 557210901.

It is an interprime number because it is at equal distance from previous prime (109012751) and next prime (109012759).

It is a cyclic number.

It is not a de Polignac number, because 109012755 - 2² = 109012751 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109012751) 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 31 ways as a sum of consecutive naturals, for example, 3429 + ... + 15158.

It is an arithmetic number, because the mean of its divisors is an integer number (6022512).

Almost surely, 2^109012755 is an apocalyptic number.

109012755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

109012755 is a deficient number, since it is larger than the sum of its proper divisors (83707629).

109012755 is a wasteful number, since it uses less digits than its factorization.

109012755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18635.

The product of its (nonzero) digits is 3150, while the sum is 30.

The square root of 109012755 is about 10440.9173447547. The cubic root of 109012755 is about 477.7042500375.

The spelling of 109012755 in words is "one hundred nine million, twelve thousand, seven hundred fifty-five".