131003287 has 2 divisors, whose sum is σ = 131003288. Its totient is φ = 131003286.

The previous prime is 131003261. The next prime is 131003311. The reversal of 131003287 is 782300131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131003287 - 2¹⁵ = 130970519 is a prime.

It is a super-2 number, since 2×131003287² = 34323722409608738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131003387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65501643 + 65501644.

It is an arithmetic number, because the mean of its divisors is an integer number (65501644).

Almost surely, 2^131003287 is an apocalyptic number.

131003287 is a deficient number, since it is larger than the sum of its proper divisors (1).

131003287 is an equidigital number, since it uses as much as digits as its factorization.

131003287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 131003287 is about 11445.6667346206. Note that the first 3 decimals coincide. The cubic root of 131003287 is about 507.8795555796.

The spelling of 131003287 in words is "one hundred thirty-one million, three thousand, two hundred eighty-seven".