109638255 has 8 divisors (see below), whose sum is σ = 175421232. Its totient is φ = 58473728.

The previous prime is 109638251. The next prime is 109638259. The reversal of 109638255 is 552836901.

It is an interprime number because it is at equal distance from previous prime (109638251) and next prime (109638259).

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

It is a cyclic number.

It is not a de Polignac number, because 109638255 - 2² = 109638251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109638251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3654594 + ... + 3654623.

It is an arithmetic number, because the mean of its divisors is an integer number (21927654).

Almost surely, 2^109638255 is an apocalyptic number.

109638255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

109638255 is a deficient number, since it is larger than the sum of its proper divisors (65782977).

109638255 is an equidigital number, since it uses as much as digits as its factorization.

109638255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7309225.

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 109638255 is about 10470.8287637608. The cubic root of 109638255 is about 478.6161748994.

The spelling of 109638255 in words is "one hundred nine million, six hundred thirty-eight thousand, two hundred fifty-five".