131504003 has 2 divisors, whose sum is σ = 131504004. Its totient is φ = 131504002.

The previous prime is 131503991. The next prime is 131504011. The reversal of 131504003 is 300405131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131504003 - 2⁴ = 131503987 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131504053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65752001 + 65752002.

It is an arithmetic number, because the mean of its divisors is an integer number (65752002).

Almost surely, 2^131504003 is an apocalyptic number.

131504003 is a deficient number, since it is larger than the sum of its proper divisors (1).

131504003 is an equidigital number, since it uses as much as digits as its factorization.

131504003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 131504003 is about 11467.5194789457. The cubic root of 131504003 is about 508.5257991846.

Adding to 131504003 its reverse (300405131), we get a palindrome (431909134).

The spelling of 131504003 in words is "one hundred thirty-one million, five hundred four thousand, three".