131333563 has 2 divisors, whose sum is σ = 131333564. Its totient is φ = 131333562.

The previous prime is 131333513. The next prime is 131333569. The reversal of 131333563 is 365333131.

It is a strong prime.

It is an emirp because it is prime and its reverse (365333131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131333563 - 2²¹ = 129236411 is a prime.

It is a super-4 number, since 4×131333563⁴ (a number of 34 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (131333569) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65666781 + 65666782.

It is an arithmetic number, because the mean of its divisors is an integer number (65666782).

Almost surely, 2^131333563 is an apocalyptic number.

131333563 is a deficient number, since it is larger than the sum of its proper divisors (1).

131333563 is an equidigital number, since it uses as much as digits as its factorization.

131333563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7290, while the sum is 28.

The square root of 131333563 is about 11460.0856454042. The cubic root of 131333563 is about 508.3060071190.

Adding to 131333563 its reverse (365333131), we get a palindrome (496666694).

The spelling of 131333563 in words is "one hundred thirty-one million, three hundred thirty-three thousand, five hundred sixty-three".