108131780 has 12 divisors (see below), whose sum is σ = 227076780. Its totient is φ = 43252704.

The previous prime is 108131767. The next prime is 108131783. The reversal of 108131780 is 87131801.

It can be written as a sum of positive squares in 2 ways, for example, as 62758084 + 45373696 = 7922^2 + 6736^2 .

It is not an unprimeable number, because it can be changed into a prime (108131783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2703275 + ... + 2703314.

It is an arithmetic number, because the mean of its divisors is an integer number (18923065).

Almost surely, 2^108131780 is an apocalyptic number.

108131780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108131780 is an abundant number, since it is smaller than the sum of its proper divisors (118945000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

108131780 is a wasteful number, since it uses less digits than its factorization.

108131780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5406598 (or 5406596 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 29.

The square root of 108131780 is about 10398.6431807231. The cubic root of 108131780 is about 476.4139291883.

The spelling of 108131780 in words is "one hundred eight million, one hundred thirty-one thousand, seven hundred eighty".