12801601 has 4 divisors (see below), whose sum is σ = 12834900. Its totient is φ = 12768304.

The previous prime is 12801589. The next prime is 12801637. The reversal of 12801601 is 10610821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10610821 = 13 ⋅816217.

It can be written as a sum of positive squares in 2 ways, for example, as 7160976 + 5640625 = 2676^2 + 2375^2 .

It is a cyclic number.

It is not a de Polignac number, because 12801601 - 2¹³ = 12793409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12801661) 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, 16066 + ... + 16843.

It is an arithmetic number, because the mean of its divisors is an integer number (3208725).

Almost surely, 2^12801601 is an apocalyptic number.

It is an amenable number.

12801601 is a deficient number, since it is larger than the sum of its proper divisors (33299).

12801601 is an equidigital number, since it uses as much as digits as its factorization.

12801601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33298.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 12801601 is about 3577.9325035556. The cubic root of 12801601 is about 233.9311714679.

The spelling of 12801601 in words is "twelve million, eight hundred one thousand, six hundred one".