109749255 has 32 divisors (see below), whose sum is σ = 218930688. Its totient is φ = 45609600.

The previous prime is 109749247. The next prime is 109749259. The reversal of 109749255 is 552947901.

It is not a de Polignac number, because 109749255 - 2³ = 109749247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109749259) 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, 46356 + ... + 48665.

It is an arithmetic number, because the mean of its divisors is an integer number (6841584).

Almost surely, 2^109749255 is an apocalyptic number.

109749255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

109749255 is a deficient number, since it is larger than the sum of its proper divisors (109181433).

109749255 is a wasteful number, since it uses less digits than its factorization.

109749255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95047.

The product of its (nonzero) digits is 113400, while the sum is 42.

The square root of 109749255 is about 10476.1278629081. The cubic root of 109749255 is about 478.7776406722. Note that the first 3 decimals are identical.

The spelling of 109749255 in words is "one hundred nine million, seven hundred forty-nine thousand, two hundred fifty-five".