13158601 has 4 divisors (see below), whose sum is σ = 13583104. Its totient is φ = 12734100.

The previous prime is 13158577. The next prime is 13158617. The reversal of 13158601 is 10685131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13158601 - 2¹¹ = 13156553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13158661) 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, 212205 + ... + 212266.

It is an arithmetic number, because the mean of its divisors is an integer number (3395776).

Almost surely, 2^13158601 is an apocalyptic number.

It is an amenable number.

13158601 is a deficient number, since it is larger than the sum of its proper divisors (424503).

13158601 is an equidigital number, since it uses as much as digits as its factorization.

13158601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424502.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 13158601 is about 3627.4786009017. The cubic root of 13158601 is about 236.0858217507.

The spelling of 13158601 in words is "thirteen million, one hundred fifty-eight thousand, six hundred one".