131258849 has 2 divisors, whose sum is σ = 131258850. Its totient is φ = 131258848.

The previous prime is 131258839. The next prime is 131258851. The reversal of 131258849 is 948852131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104550625 + 26708224 = 10225^2 + 5168^2 .

It is a cyclic number.

It is not a de Polignac number, because 131258849 - 2¹⁶ = 131193313 is a prime.

Together with 131258851, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131258839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65629424 + 65629425.

It is an arithmetic number, because the mean of its divisors is an integer number (65629425).

Almost surely, 2^131258849 is an apocalyptic number.

It is an amenable number.

131258849 is a deficient number, since it is larger than the sum of its proper divisors (1).

131258849 is an equidigital number, since it uses as much as digits as its factorization.

131258849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 41.

The square root of 131258849 is about 11456.8254329024. The cubic root of 131258849 is about 508.2095992192.

The spelling of 131258849 in words is "one hundred thirty-one million, two hundred fifty-eight thousand, eight hundred forty-nine".