12901601 has 4 divisors (see below), whose sum is σ = 12912900. Its totient is φ = 12890304.

The previous prime is 12901579. The next prime is 12901619. The reversal of 12901601 is 10610921.

12901601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10610921 = 151 ⋅70271.

It can be written as a sum of positive squares in 2 ways, for example, as 12082576 + 819025 = 3476^2 + 905^2 .

It is a cyclic number.

It is not a de Polignac number, because 12901601 - 2¹⁸ = 12639457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12901001) 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, 3716 + ... + 6293.

It is an arithmetic number, because the mean of its divisors is an integer number (3228225).

Almost surely, 2^12901601 is an apocalyptic number.

It is an amenable number.

12901601 is a deficient number, since it is larger than the sum of its proper divisors (11299).

12901601 is a wasteful number, since it uses less digits than its factorization.

12901601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11298.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 12901601 is about 3591.8798699288. The cubic root of 12901601 is about 234.5387118363.

The spelling of 12901601 in words is "twelve million, nine hundred one thousand, six hundred one".