13105145 has 8 divisors (see below), whose sum is σ = 15806400. Its totient is φ = 10430640.

The previous prime is 13105123. The next prime is 13105159. The reversal of 13105145 is 54150131.

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

It is a de Polignac number, because none of the positive numbers 2^k-13105145 is a prime.

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, 5591 + ... + 7580.

It is an arithmetic number, because the mean of its divisors is an integer number (1975800).

Almost surely, 2^13105145 is an apocalyptic number.

It is an amenable number.

13105145 is a deficient number, since it is larger than the sum of its proper divisors (2701255).

13105145 is a wasteful number, since it uses less digits than its factorization.

13105145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13375.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 13105145 is about 3620.1028990900. The cubic root of 13105145 is about 235.7656931909.

Adding to 13105145 its reverse (54150131), we get a palindrome (67255276).

The spelling of 13105145 in words is "thirteen million, one hundred five thousand, one hundred forty-five".