13042145 has 8 divisors (see below), whose sum is σ = 16571304. Its totient is φ = 9819904.

The previous prime is 13042129. The next prime is 13042157. The reversal of 13042145 is 54124031.

It can be written as a sum of positive squares in 4 ways, for example, as 5987809 + 7054336 = 2447^2 + 2656^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13042145 - 2⁴ = 13042129 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76634 + ... + 76803.

It is an arithmetic number, because the mean of its divisors is an integer number (2071413).

Almost surely, 2^13042145 is an apocalyptic number.

It is an amenable number.

13042145 is a deficient number, since it is larger than the sum of its proper divisors (3529159).

13042145 is a wasteful number, since it uses less digits than its factorization.

13042145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153459.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 13042145 is about 3611.3910062468. The cubic root of 13042145 is about 235.3872895531.

Adding to 13042145 its reverse (54124031), we get a palindrome (67166176).

The spelling of 13042145 in words is "thirteen million, forty-two thousand, one hundred forty-five".