131708873 has 2 divisors, whose sum is σ = 131708874. Its totient is φ = 131708872.

The previous prime is 131708867. The next prime is 131708891. The reversal of 131708873 is 378807131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75203584 + 56505289 = 8672^2 + 7517^2 .

It is an emirp because it is prime and its reverse (378807131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131708873 - 2¹⁸ = 131446729 is a prime.

It is not a weakly prime, because it can be changed into another prime (131708273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65854436 + 65854437.

It is an arithmetic number, because the mean of its divisors is an integer number (65854437).

Almost surely, 2^131708873 is an apocalyptic number.

It is an amenable number.

131708873 is a deficient number, since it is larger than the sum of its proper divisors (1).

131708873 is an equidigital number, since it uses as much as digits as its factorization.

131708873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 131708873 is about 11476.4486231586. The cubic root of 131708873 is about 508.7897395042.

The spelling of 131708873 in words is "one hundred thirty-one million, seven hundred eight thousand, eight hundred seventy-three".