131348489 has 2 divisors, whose sum is σ = 131348490. Its totient is φ = 131348488.

The previous prime is 131348479. The next prime is 131348491. The reversal of 131348489 is 984843131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114661264 + 16687225 = 10708^2 + 4085^2 .

It is a cyclic number.

It is not a de Polignac number, because 131348489 - 2⁸ = 131348233 is a prime.

It is a Sophie Germain prime.

Together with 131348491, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (131348419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65674244 + 65674245.

It is an arithmetic number, because the mean of its divisors is an integer number (65674245).

Almost surely, 2^131348489 is an apocalyptic number.

It is an amenable number.

131348489 is a deficient number, since it is larger than the sum of its proper divisors (1).

131348489 is an equidigital number, since it uses as much as digits as its factorization.

131348489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 41.

The square root of 131348489 is about 11460.7368436763. The cubic root of 131348489 is about 508.3252626387.

The spelling of 131348489 in words is "one hundred thirty-one million, three hundred forty-eight thousand, four hundred eighty-nine".