131489263 has 2 divisors, whose sum is σ = 131489264. Its totient is φ = 131489262.

The previous prime is 131489261. The next prime is 131489299. The reversal of 131489263 is 362984131.

It is a weak prime.

It is an emirp because it is prime and its reverse (362984131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131489263 - 2¹ = 131489261 is a prime.

Together with 131489261, it forms a pair of twin primes.

It is equal to p_7457905 and since 131489263 and 7457905 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131489261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65744631 + 65744632.

It is an arithmetic number, because the mean of its divisors is an integer number (65744632).

Almost surely, 2^131489263 is an apocalyptic number.

131489263 is a deficient number, since it is larger than the sum of its proper divisors (1).

131489263 is an equidigital number, since it uses as much as digits as its factorization.

131489263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 37.

The square root of 131489263 is about 11466.8767761758. The cubic root of 131489263 is about 508.5067986214.

The spelling of 131489263 in words is "one hundred thirty-one million, four hundred eighty-nine thousand, two hundred sixty-three".