131108885 has 8 divisors (see below), whose sum is σ = 157541976. Its totient is φ = 104746240.

The previous prime is 131108881. The next prime is 131108893. The reversal of 131108885 is 588801131.

It can be written as a sum of positive squares in 4 ways, for example, as 75076 + 131033809 = 274^2 + 11447^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131108885 - 2² = 131108881 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131108881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13424 + ... + 21033.

It is an arithmetic number, because the mean of its divisors is an integer number (19692747).

Almost surely, 2^131108885 is an apocalyptic number.

It is an amenable number.

131108885 is a deficient number, since it is larger than the sum of its proper divisors (26433091).

131108885 is an equidigital number, since it uses as much as digits as its factorization.

131108885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35223.

The product of its (nonzero) digits is 7680, while the sum is 35.

The square root of 131108885 is about 11450.2788175660. The cubic root of 131108885 is about 508.0159813209.

The spelling of 131108885 in words is "one hundred thirty-one million, one hundred eight thousand, eight hundred eighty-five".