108129007156 has 24 divisors (see below), whose sum is σ = 189829659656. Its totient is φ = 53892034560.

The previous prime is 108129007153. The next prime is 108129007157. The reversal of 108129007156 is 651700921801.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8598852900 + 99530154256 = 92730^2 + 315484^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108129007153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11772886 + ... + 11782066.

Almost surely, 2^108129007156 is an apocalyptic number.

It is an amenable number.

108129007156 is a deficient number, since it is larger than the sum of its proper divisors (81700652500).

108129007156 is a wasteful number, since it uses less digits than its factorization.

108129007156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18259 (or 18257 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 40.

Adding to 108129007156 its reverse (651700921801), we get a palindrome (759829928957).

The spelling of 108129007156 in words is "one hundred eight billion, one hundred twenty-nine million, seven thousand, one hundred fifty-six".