131113289 has 2 divisors, whose sum is σ = 131113290. Its totient is φ = 131113288.

The previous prime is 131113277. The next prime is 131113303. The reversal of 131113289 is 982311131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118439689 + 12673600 = 10883^2 + 3560^2 .

It is a cyclic number.

It is not a de Polignac number, because 131113289 - 2⁴ = 131113273 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131113259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65556644 + 65556645.

It is an arithmetic number, because the mean of its divisors is an integer number (65556645).

Almost surely, 2^131113289 is an apocalyptic number.

It is an amenable number.

131113289 is a deficient number, since it is larger than the sum of its proper divisors (1).

131113289 is an equidigital number, since it uses as much as digits as its factorization.

131113289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 29.

The square root of 131113289 is about 11450.4711256786. The cubic root of 131113289 is about 508.0216694107.

The spelling of 131113289 in words is "one hundred thirty-one million, one hundred thirteen thousand, two hundred eighty-nine".