131087807 has 2 divisors, whose sum is σ = 131087808. Its totient is φ = 131087806.

The previous prime is 131087777. The next prime is 131087813. The reversal of 131087807 is 708780131.

It is a strong prime.

It is an emirp because it is prime and its reverse (708780131) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131087807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131087107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65543903 + 65543904.

It is an arithmetic number, because the mean of its divisors is an integer number (65543904).

Almost surely, 2^131087807 is an apocalyptic number.

131087807 is a deficient number, since it is larger than the sum of its proper divisors (1).

131087807 is an equidigital number, since it uses as much as digits as its factorization.

131087807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 35.

The square root of 131087807 is about 11449.3583663016. The cubic root of 131087807 is about 507.9887557703.

The spelling of 131087807 in words is "one hundred thirty-one million, eighty-seven thousand, eight hundred seven".