131788869 has 8 divisors (see below), whose sum is σ = 175911360. Its totient is φ = 87762816.

The previous prime is 131788859. The next prime is 131788889. The reversal of 131788869 is 968887131.

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

It is not a de Polignac number, because 131788869 - 2¹¹ = 131786821 is a prime.

It is a super-2 number, since 2×131788869² = 34736611984598322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131788859) 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, 20857 + ... + 26430.

It is an arithmetic number, because the mean of its divisors is an integer number (21988920).

Almost surely, 2^131788869 is an apocalyptic number.

It is an amenable number.

131788869 is a deficient number, since it is larger than the sum of its proper divisors (44122491).

131788869 is an equidigital number, since it uses as much as digits as its factorization.

131788869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48219.

The product of its digits is 580608, while the sum is 51.

The square root of 131788869 is about 11479.9333186217. The cubic root of 131788869 is about 508.8927265078.

The spelling of 131788869 in words is "one hundred thirty-one million, seven hundred eighty-eight thousand, eight hundred sixty-nine".