12881601 has 24 divisors (see below), whose sum is σ = 19880640. Its totient is φ = 8013600.

The previous prime is 12881599. The next prime is 12881629. The reversal of 12881601 is 10618821.

It is not a de Polignac number, because 12881601 - 2¹ = 12881599 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12881501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11611 + ... + 12671.

It is an arithmetic number, because the mean of its divisors is an integer number (828360).

Almost surely, 2^12881601 is an apocalyptic number.

It is an amenable number.

12881601 is a deficient number, since it is larger than the sum of its proper divisors (6999039).

12881601 is a wasteful number, since it uses less digits than its factorization.

12881601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157 (or 1154 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 12881601 is about 3589.0947326589. The cubic root of 12881601 is about 234.4174555623.

The spelling of 12881601 in words is "twelve million, eight hundred eighty-one thousand, six hundred one".