108138007 has 2 divisors, whose sum is σ = 108138008. Its totient is φ = 108138006.

The previous prime is 108138001. The next prime is 108138029. The reversal of 108138007 is 700831801.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108138007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108138001) 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, 54069003 + 54069004.

It is an arithmetic number, because the mean of its divisors is an integer number (54069004).

Almost surely, 2^108138007 is an apocalyptic number.

108138007 is a deficient number, since it is larger than the sum of its proper divisors (1).

108138007 is an equidigital number, since it uses as much as digits as its factorization.

108138007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 108138007 is about 10398.9425904752. The cubic root of 108138007 is about 476.4230741180.

Adding to 108138007 its reverse (700831801), we get a palindrome (808969808).

The spelling of 108138007 in words is "one hundred eight million, one hundred thirty-eight thousand, seven".