12801538 has 8 divisors (see below), whose sum is σ = 19289088. Its totient is φ = 6371844.

The previous prime is 12801533. The next prime is 12801541. The reversal of 12801538 is 83510821.

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

It is not an unprimeable number, because it can be changed into a prime (12801533) 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, 13906 + ... + 14797.

It is an arithmetic number, because the mean of its divisors is an integer number (2411136).

Almost surely, 2^12801538 is an apocalyptic number.

12801538 is a deficient number, since it is larger than the sum of its proper divisors (6487550).

12801538 is a wasteful number, since it uses less digits than its factorization.

12801538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28928.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 12801538 is about 3577.9236995777. The cubic root of 12801538 is about 233.9307877220.

The spelling of 12801538 in words is "twelve million, eight hundred one thousand, five hundred thirty-eight".