109782755 has 4 divisors (see below), whose sum is σ = 131739312. Its totient is φ = 87826200.

The previous prime is 109782733. The next prime is 109782773. The reversal of 109782755 is 557287901.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-109782755 is a prime.

It is a Duffinian 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, 10978271 + ... + 10978280.

It is an arithmetic number, because the mean of its divisors is an integer number (32934828).

Almost surely, 2^109782755 is an apocalyptic number.

109782755 is a deficient number, since it is larger than the sum of its proper divisors (21956557).

109782755 is an equidigital number, since it uses as much as digits as its factorization.

109782755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21956556.

The product of its (nonzero) digits is 176400, while the sum is 44.

The square root of 109782755 is about 10477.7266141086. The cubic root of 109782755 is about 478.8263499454.

The spelling of 109782755 in words is "one hundred nine million, seven hundred eighty-two thousand, seven hundred fifty-five".