131240563 has 2 divisors, whose sum is σ = 131240564. Its totient is φ = 131240562.

The previous prime is 131240537. The next prime is 131240569. The reversal of 131240563 is 365042131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131240563 - 2¹³ = 131232371 is a prime.

It is not a weakly prime, because it can be changed into another prime (131240569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65620281 + 65620282.

It is an arithmetic number, because the mean of its divisors is an integer number (65620282).

Almost surely, 2^131240563 is an apocalyptic number.

131240563 is a deficient number, since it is larger than the sum of its proper divisors (1).

131240563 is an equidigital number, since it uses as much as digits as its factorization.

131240563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 131240563 is about 11456.0273655399. The cubic root of 131240563 is about 508.1859981378.

Adding to 131240563 its reverse (365042131), we get a palindrome (496282694).

The spelling of 131240563 in words is "one hundred thirty-one million, two hundred forty thousand, five hundred sixty-three".