12958503 has 4 divisors (see below), whose sum is σ = 17278008. Its totient is φ = 8639000.

The previous prime is 12958493. The next prime is 12958507. The reversal of 12958503 is 30585921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12958503 - 2⁴ = 12958487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12958507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2159748 + ... + 2159753.

It is an arithmetic number, because the mean of its divisors is an integer number (4319502).

Almost surely, 2^12958503 is an apocalyptic number.

12958503 is a deficient number, since it is larger than the sum of its proper divisors (4319505).

12958503 is an equidigital number, since it uses as much as digits as its factorization.

12958503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4319504.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 12958503 is about 3599.7920773289. The cubic root of 12958503 is about 234.8830140527.

The spelling of 12958503 in words is "twelve million, nine hundred fifty-eight thousand, five hundred three".