131322807 has 96 divisors (see below), whose sum is σ = 255550464. Its totient is φ = 62899200.

The previous prime is 131322803. The next prime is 131322809. The reversal of 131322807 is 708223131.

It is not a de Polignac number, because 131322807 - 2² = 131322803 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131322803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 836373 + ... + 836529.

It is an arithmetic number, because the mean of its divisors is an integer number (2661984).

Almost surely, 2^131322807 is an apocalyptic number.

131322807 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

131322807 is a deficient number, since it is larger than the sum of its proper divisors (124227657).

131322807 is a wasteful number, since it uses less digits than its factorization.

131322807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 266 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 131322807 is about 11459.6163548349. The cubic root of 131322807 is about 508.2921302684.

Adding to 131322807 its reverse (708223131), we get a palindrome (839545938).

The spelling of 131322807 in words is "one hundred thirty-one million, three hundred twenty-two thousand, eight hundred seven".