12531003 has 8 divisors (see below), whose sum is σ = 16943616. Its totient is φ = 8236200.

The previous prime is 12530993. The next prime is 12531007. The reversal of 12531003 is 30013521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12531003 - 2⁵ = 12530971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12531007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29203 + ... + 29628.

It is an arithmetic number, because the mean of its divisors is an integer number (2117952).

Almost surely, 2^12531003 is an apocalyptic number.

12531003 is a deficient number, since it is larger than the sum of its proper divisors (4412613).

12531003 is an equidigital number, since it uses as much as digits as its factorization.

12531003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58905.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 12531003 is about 3539.9156769618. The cubic root of 12531003 is about 232.2711541750.

Adding to 12531003 its reverse (30013521), we get a palindrome (42544524).

The spelling of 12531003 in words is "twelve million, five hundred thirty-one thousand, three".