108164978 has 4 divisors (see below), whose sum is σ = 162247470. Its totient is φ = 54082488.

The previous prime is 108164977. The next prime is 108164989. The reversal of 108164978 is 879461801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 68939809 + 39225169 = 8303^2 + 6263^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (108164971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27041243 + ... + 27041246.

Almost surely, 2^108164978 is an apocalyptic number.

108164978 is a deficient number, since it is larger than the sum of its proper divisors (54082492).

108164978 is an equidigital number, since it uses as much as digits as its factorization.

108164978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54082491.

The product of its (nonzero) digits is 96768, while the sum is 44.

The square root of 108164978 is about 10400.2393241694. The cubic root of 108164978 is about 476.4626794919.

The spelling of 108164978 in words is "one hundred eight million, one hundred sixty-four thousand, nine hundred seventy-eight".