13210145 has 8 divisors (see below), whose sum is σ = 17071656. Its totient is φ = 9755136.

The previous prime is 13210129. The next prime is 13210151. The reversal of 13210145 is 54101231.

It can be written as a sum of positive squares in 4 ways, for example, as 134689 + 13075456 = 367^2 + 3616^2 .

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 13210145 - 2⁴ = 13210129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 16.

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, 101552 + ... + 101681.

It is an arithmetic number, because the mean of its divisors is an integer number (2133957).

Almost surely, 2^13210145 is an apocalyptic number.

It is an amenable number.

13210145 is a deficient number, since it is larger than the sum of its proper divisors (3861511).

13210145 is a wasteful number, since it uses less digits than its factorization.

13210145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203251.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 13210145 is about 3634.5763164363. The cubic root of 13210145 is about 236.3936800389.

Adding to 13210145 its reverse (54101231), we get a palindrome (67311376).

The spelling of 13210145 in words is "thirteen million, two hundred ten thousand, one hundred forty-five".