12903173 has 4 divisors (see below), whose sum is σ = 13348140. Its totient is φ = 12458208.

The previous prime is 12903169. The next prime is 12903179. The reversal of 12903173 is 37130921.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2256004 + 10647169 = 1502^2 + 3263^2 .

It is a cyclic number.

It is not a de Polignac number, because 12903173 - 2² = 12903169 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 (12903179) 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, 222440 + ... + 222497.

It is an arithmetic number, because the mean of its divisors is an integer number (3337035).

Almost surely, 2^12903173 is an apocalyptic number.

It is an amenable number.

12903173 is a deficient number, since it is larger than the sum of its proper divisors (444967).

12903173 is an equidigital number, since it uses as much as digits as its factorization.

12903173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444966.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 12903173 is about 3592.0986901810. The cubic root of 12903173 is about 234.5482372661.

The spelling of 12903173 in words is "twelve million, nine hundred three thousand, one hundred seventy-three".