131273503 has 2 divisors, whose sum is σ = 131273504. Its totient is φ = 131273502.

The previous prime is 131273501. The next prime is 131273551. The reversal of 131273503 is 305372131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131273503 - 2¹ = 131273501 is a prime.

Together with 131273501, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131273501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65636751 + 65636752.

It is an arithmetic number, because the mean of its divisors is an integer number (65636752).

Almost surely, 2^131273503 is an apocalyptic number.

131273503 is a deficient number, since it is larger than the sum of its proper divisors (1).

131273503 is an equidigital number, since it uses as much as digits as its factorization.

131273503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 25.

The square root of 131273503 is about 11457.4649464879. The cubic root of 131273503 is about 508.2285110269.

The spelling of 131273503 in words is "one hundred thirty-one million, two hundred seventy-three thousand, five hundred three".