131445003 has 12 divisors (see below), whose sum is σ = 186177080. Its totient is φ = 82474752.

The previous prime is 131444987. The next prime is 131445011. The reversal of 131445003 is 300544131.

It is not a de Polignac number, because 131445003 - 2⁴ = 131444987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131445043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74938 + ... + 76671.

Almost surely, 2^131445003 is an apocalyptic number.

131445003 is a deficient number, since it is larger than the sum of its proper divisors (54732077).

131445003 is a wasteful number, since it uses less digits than its factorization.

131445003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151646 (or 151629 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 131445003 is about 11464.9467072464. The cubic root of 131445003 is about 508.4497368352.

Adding to 131445003 its reverse (300544131), we get a palindrome (431989134).

The spelling of 131445003 in words is "one hundred thirty-one million, four hundred forty-five thousand, three".