131503783 has 2 divisors, whose sum is σ = 131503784. Its totient is φ = 131503782.

The previous prime is 131503763. The next prime is 131503837. The reversal of 131503783 is 387305131.

It is a happy number.

Together with next prime (131503837) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131503783 - 2²¹ = 129406631 is a prime.

It is a super-2 number, since 2×131503783² = 34586489886622178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131503753) 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, 65751891 + 65751892.

It is an arithmetic number, because the mean of its divisors is an integer number (65751892).

Almost surely, 2^131503783 is an apocalyptic number.

131503783 is a deficient number, since it is larger than the sum of its proper divisors (1).

131503783 is an equidigital number, since it uses as much as digits as its factorization.

131503783 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 131503783 is about 11467.5098866319. The cubic root of 131503783 is about 508.5255156045.

The spelling of 131503783 in words is "one hundred thirty-one million, five hundred three thousand, seven hundred eighty-three".