13145045 has 4 divisors (see below), whose sum is σ = 15774060. Its totient is φ = 10516032.

The previous prime is 13145021. The next prime is 13145053. The reversal of 13145045 is 54054131.

13145045 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: 54054131 = 241 ⋅224291.

It can be written as a sum of positive squares in 2 ways, for example, as 1359556 + 11785489 = 1166^2 + 3433^2 .

It is a cyclic number.

It is not a de Polignac number, because 13145045 - 2¹⁸ = 12882901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13145045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1314500 + ... + 1314509.

It is an arithmetic number, because the mean of its divisors is an integer number (3943515).

Almost surely, 2^13145045 is an apocalyptic number.

It is an amenable number.

13145045 is a deficient number, since it is larger than the sum of its proper divisors (2629015).

13145045 is an equidigital number, since it uses as much as digits as its factorization.

13145045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2629014.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 13145045 is about 3625.6096039149. The cubic root of 13145045 is about 236.0047219681.

Adding to 13145045 its reverse (54054131), we get a palindrome (67199176).

The spelling of 13145045 in words is "thirteen million, one hundred forty-five thousand, forty-five".