13143601 has 4 divisors (see below), whose sum is σ = 13916772. Its totient is φ = 12370432.

The previous prime is 13143587. The next prime is 13143617. The reversal of 13143601 is 10634131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10634131 = 521 ⋅20411.

It can be written as a sum of positive squares in 2 ways, for example, as 11390625 + 1752976 = 3375^2 + 1324^2 .

It is a cyclic number.

It is not a de Polignac number, because 13143601 - 2⁹ = 13143089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13143661) 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, 386560 + ... + 386593.

It is an arithmetic number, because the mean of its divisors is an integer number (3479193).

Almost surely, 2^13143601 is an apocalyptic number.

It is an amenable number.

13143601 is a deficient number, since it is larger than the sum of its proper divisors (773171).

13143601 is an equidigital number, since it uses as much as digits as its factorization.

13143601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773170.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 13143601 is about 3625.4104595204. The cubic root of 13143601 is about 235.9960798449.

Adding to 13143601 its reverse (10634131), we get a palindrome (23777732).

The spelling of 13143601 in words is "thirteen million, one hundred forty-three thousand, six hundred one".