13145245 has 8 divisors (see below), whose sum is σ = 16604640. Its totient is φ = 9962640.

The previous prime is 13145243. The next prime is 13145257. The reversal of 13145245 is 54254131.

It is a happy number.

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

It is not a de Polignac number, because 13145245 - 2¹ = 13145243 is a prime.

It is a super-2 number, since 2×13145245² = 345594932220050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13145243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69091 + ... + 69280.

It is an arithmetic number, because the mean of its divisors is an integer number (2075580).

Almost surely, 2^13145245 is an apocalyptic number.

It is an amenable number.

13145245 is a deficient number, since it is larger than the sum of its proper divisors (3459395).

13145245 is a wasteful number, since it uses less digits than its factorization.

13145245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138395.

The product of its digits is 2400, while the sum is 25.

The square root of 13145245 is about 3625.6371853786. The cubic root of 13145245 is about 236.0059188882.

Adding to 13145245 its reverse (54254131), we get a palindrome (67399376).

The spelling of 13145245 in words is "thirteen million, one hundred forty-five thousand, two hundred forty-five".