131566868 has 24 divisors (see below), whose sum is σ = 248277120. Its totient is φ = 60799680.

The previous prime is 131566867. The next prime is 131566889. The reversal of 131566868 is 868665131.

131566868 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131566867) 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, 17996 + ... + 24227.

It is an arithmetic number, because the mean of its divisors is an integer number (10344880).

Almost surely, 2^131566868 is an apocalyptic number.

It is an amenable number.

131566868 is a deficient number, since it is larger than the sum of its proper divisors (116710252).

131566868 is a wasteful number, since it uses less digits than its factorization.

131566868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42287 (or 42285 counting only the distinct ones).

The product of its digits is 207360, while the sum is 44.

The square root of 131566868 is about 11470.2601539808. The cubic root of 131566868 is about 508.6068192318.

The spelling of 131566868 in words is "one hundred thirty-one million, five hundred sixty-six thousand, eight hundred sixty-eight".