12748401 has 8 divisors (see below), whose sum is σ = 18886560. Its totient is φ = 8498916.

The previous prime is 12748397. The next prime is 12748403. The reversal of 12748401 is 10484721.

It is not a de Polignac number, because 12748401 - 2² = 12748397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 472163 = 12748401 / (1 + 2 + 7 + 4 + 8 + 4 + 0 + 1).

It is not an unprimeable number, because it can be changed into a prime (12748403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236055 + ... + 236108.

It is an arithmetic number, because the mean of its divisors is an integer number (2360820).

Almost surely, 2^12748401 is an apocalyptic number.

It is an amenable number.

12748401 is a deficient number, since it is larger than the sum of its proper divisors (6138159).

12748401 is an equidigital number, since it uses as much as digits as its factorization.

12748401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472172 (or 472166 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 12748401 is about 3570.4903024655. The cubic root of 12748401 is about 233.6066699263.

The spelling of 12748401 in words is "twelve million, seven hundred forty-eight thousand, four hundred one".