12948905 has 8 divisors (see below), whose sum is σ = 15561672. Its totient is φ = 10343808.

The previous prime is 12948893. The next prime is 12948911. The reversal of 12948905 is 50984921.

12948905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5125696 + 7823209 = 2264^2 + 2797^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12948905 - 2¹⁰ = 12947881 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2909 + ... + 5861.

It is an arithmetic number, because the mean of its divisors is an integer number (1945209).

Almost surely, 2^12948905 is an apocalyptic number.

It is an amenable number.

12948905 is a deficient number, since it is larger than the sum of its proper divisors (2612767).

12948905 is an equidigital number, since it uses as much as digits as its factorization.

12948905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3835.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 12948905 is about 3598.4586978316. The cubic root of 12948905 is about 234.8250093076.

The spelling of 12948905 in words is "twelve million, nine hundred forty-eight thousand, nine hundred five".