12903199 has 4 divisors (see below), whose sum is σ = 12953664. Its totient is φ = 12852736.

The previous prime is 12903197. The next prime is 12903211. The reversal of 12903199 is 99130921.

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 12903199 - 2¹ = 12903197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12903193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24847 + ... + 25360.

It is an arithmetic number, because the mean of its divisors is an integer number (3238416).

Almost surely, 2^12903199 is an apocalyptic number.

12903199 is a deficient number, since it is larger than the sum of its proper divisors (50465).

12903199 is an equidigital number, since it uses as much as digits as its factorization.

12903199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50464.

The product of its (nonzero) digits is 4374, while the sum is 34.

The square root of 12903199 is about 3592.1023092334. The cubic root of 12903199 is about 234.5483948048.

It can be divided in two parts, 1290 and 3199, that added together give a square (4489 = 67²).

The spelling of 12903199 in words is "twelve million, nine hundred three thousand, one hundred ninety-nine".