108281978 has 16 divisors (see below), whose sum is σ = 187090944. Its totient is φ = 46040400.

The previous prime is 108281941. The next prime is 108281981. The reversal of 108281978 is 879182801.

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, 28673 + ... + 32228.

It is an arithmetic number, because the mean of its divisors is an integer number (11693184).

Almost surely, 2^108281978 is an apocalyptic number.

108281978 is a deficient number, since it is larger than the sum of its proper divisors (78808966).

108281978 is a wasteful number, since it uses less digits than its factorization.

108281978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61037.

The product of its (nonzero) digits is 64512, while the sum is 44.

The square root of 108281978 is about 10405.8626744735. The cubic root of 108281978 is about 476.6344111274.

The spelling of 108281978 in words is "one hundred eight million, two hundred eighty-one thousand, nine hundred seventy-eight".