108204139 has 2 divisors, whose sum is σ = 108204140. Its totient is φ = 108204138.

The previous prime is 108204137. The next prime is 108204149. The reversal of 108204139 is 931402801.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 108204139 - 2¹ = 108204137 is a prime.

Together with 108204137, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (108204137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54102069 + 54102070.

It is an arithmetic number, because the mean of its divisors is an integer number (54102070).

Almost surely, 2^108204139 is an apocalyptic number.

108204139 is a deficient number, since it is larger than the sum of its proper divisors (1).

108204139 is an equidigital number, since it uses as much as digits as its factorization.

108204139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 108204139 is about 10402.1218508533. The cubic root of 108204139 is about 476.5201734670.

The spelling of 108204139 in words is "one hundred eight million, two hundred four thousand, one hundred thirty-nine".