109115755 has 8 divisors (see below), whose sum is σ = 149644512. Its totient is φ = 74822208.

The previous prime is 109115737. The next prime is 109115761. The reversal of 109115755 is 557511901.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109115755 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 109115755.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1558762 + ... + 1558831.

It is an arithmetic number, because the mean of its divisors is an integer number (18705564).

Almost surely, 2^109115755 is an apocalyptic number.

109115755 is a deficient number, since it is larger than the sum of its proper divisors (40528757).

109115755 is an equidigital number, since it uses as much as digits as its factorization.

109115755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3117605.

The product of its (nonzero) digits is 7875, while the sum is 34.

The square root of 109115755 is about 10445.8486969705. The cubic root of 109115755 is about 477.8546546066.

The spelling of 109115755 in words is "one hundred nine million, one hundred fifteen thousand, seven hundred fifty-five".