12642903 has 48 divisors (see below), whose sum is σ = 23063040. Its totient is φ = 6495552.

The previous prime is 12642901. The next prime is 12642907. The reversal of 12642903 is 30924621.

12642903 is a `hidden beast` number, since 12 + 642 + 9 + 0 + 3 = 666.

12642903 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12642903 - 2¹ = 12642901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12642901) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35038 + ... + 35396.

It is an arithmetic number, because the mean of its divisors is an integer number (480480).

Almost surely, 2^12642903 is an apocalyptic number.

12642903 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12642903 is a deficient number, since it is larger than the sum of its proper divisors (10420137).

12642903 is a wasteful number, since it uses less digits than its factorization.

12642903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 12642903 is about 3555.6860097596. The cubic root of 12642903 is about 232.9604886737.

The spelling of 12642903 in words is "twelve million, six hundred forty-two thousand, nine hundred three".