109455555 has 32 divisors (see below), whose sum is σ = 193920768. Its totient is φ = 52272000.

The previous prime is 109455553. The next prime is 109455557. The reversal of 109455555 is 555554901.

It is an interprime number because it is at equal distance from previous prime (109455553) and next prime (109455557).

It is not a de Polignac number, because 109455555 - 2¹ = 109455553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109455553) 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 31 ways as a sum of consecutive naturals, for example, 6105 + ... + 16005.

It is an arithmetic number, because the mean of its divisors is an integer number (6060024).

Almost surely, 2^109455555 is an apocalyptic number.

109455555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

109455555 is a deficient number, since it is larger than the sum of its proper divisors (84465213).

109455555 is a wasteful number, since it uses less digits than its factorization.

109455555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9987.

The product of its (nonzero) digits is 112500, while the sum is 39.

The square root of 109455555 is about 10462.1008884449. The cubic root of 109455555 is about 478.3501734883.

The spelling of 109455555 in words is "one hundred nine million, four hundred fifty-five thousand, five hundred fifty-five".