131365519 has 2 divisors, whose sum is σ = 131365520. Its totient is φ = 131365518.

The previous prime is 131365499. The next prime is 131365523. The reversal of 131365519 is 915563131.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131365519 - 2⁹ = 131365007 is a prime.

It is a super-2 number, since 2×131365519² = 34513799164278722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131365589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65682759 + 65682760.

It is an arithmetic number, because the mean of its divisors is an integer number (65682760).

Almost surely, 2^131365519 is an apocalyptic number.

131365519 is a deficient number, since it is larger than the sum of its proper divisors (1).

131365519 is an equidigital number, since it uses as much as digits as its factorization.

131365519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12150, while the sum is 34.

The square root of 131365519 is about 11461.4797910218. The cubic root of 131365519 is about 508.3472306750.

The spelling of 131365519 in words is "one hundred thirty-one million, three hundred sixty-five thousand, five hundred nineteen".