13020445 has 8 divisors (see below), whose sum is σ = 15858144. Its totient is φ = 10260624.

The previous prime is 13020439. The next prime is 13020467. The reversal of 13020445 is 54402031.

13020445 = T₉₄ + T₉₅ + ... + T₄₂₈.

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 13020445 - 2⁹ = 13019933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19099 + ... + 19768.

It is an arithmetic number, because the mean of its divisors is an integer number (1982268).

Almost surely, 2^13020445 is an apocalyptic number.

It is an amenable number.

13020445 is a deficient number, since it is larger than the sum of its proper divisors (2837699).

13020445 is an equidigital number, since it uses as much as digits as its factorization.

13020445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38939.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 13020445 is about 3608.3853729889. The cubic root of 13020445 is about 235.2566684088.

Adding to 13020445 its reverse (54402031), we get a palindrome (67422476).

The spelling of 13020445 in words is "thirteen million, twenty thousand, four hundred forty-five".