13210445 has 16 divisors (see below), whose sum is σ = 17022960. Its totient is φ = 9805824.

The previous prime is 13210427. The next prime is 13210447. The reversal of 13210445 is 54401231.

13210445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 4489 + 13205956 = 67^2 + 3634^2 .

It is a cyclic number.

It is not a de Polignac number, because 13210445 - 2¹⁴ = 13194061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13210447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5141 + ... + 7269.

It is an arithmetic number, because the mean of its divisors is an integer number (1063935).

Almost surely, 2^13210445 is an apocalyptic number.

It is an amenable number.

13210445 is a deficient number, since it is larger than the sum of its proper divisors (3812515).

13210445 is a wasteful number, since it uses less digits than its factorization.

13210445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2224.

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

The square root of 13210445 is about 3634.6175864869. The cubic root of 13210445 is about 236.3954695112.

Adding to 13210445 its reverse (54401231), we get a palindrome (67611676).

The spelling of 13210445 in words is "thirteen million, two hundred ten thousand, four hundred forty-five".