108978255 has 48 divisors (see below), whose sum is σ = 200019456. Its totient is φ = 54774720.

The previous prime is 108978241. The next prime is 108978271. The reversal of 108978255 is 552879801.

It is a happy number.

It is not a de Polignac number, because 108978255 - 2¹³ = 108970063 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 108978255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 72744 + ... + 74226.

It is an arithmetic number, because the mean of its divisors is an integer number (4167072).

Almost surely, 2^108978255 is an apocalyptic number.

108978255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

108978255 is a deficient number, since it is larger than the sum of its proper divisors (91041201).

108978255 is a wasteful number, since it uses less digits than its factorization.

108978255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1588 (or 1585 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 45.

The square root of 108978255 is about 10439.2650603383. The cubic root of 108978255 is about 477.6538506277.

The spelling of 108978255 in words is "one hundred eight million, nine hundred seventy-eight thousand, two hundred fifty-five".