131003473 has 2 divisors, whose sum is σ = 131003474. Its totient is φ = 131003472.

The previous prime is 131003471. The next prime is 131003497. The reversal of 131003473 is 374300131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80066704 + 50936769 = 8948^2 + 7137^2 .

It is a cyclic number.

It is not a de Polignac number, because 131003473 - 2¹ = 131003471 is a prime.

Together with 131003471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (131003471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65501736 + 65501737.

It is an arithmetic number, because the mean of its divisors is an integer number (65501737).

Almost surely, 2^131003473 is an apocalyptic number.

It is an amenable number.

131003473 is a deficient number, since it is larger than the sum of its proper divisors (1).

131003473 is an equidigital number, since it uses as much as digits as its factorization.

131003473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 131003473 is about 11445.6748599635. The cubic root of 131003473 is about 507.8797959439.

The spelling of 131003473 in words is "one hundred thirty-one million, three thousand, four hundred seventy-three".