13385445 has 16 divisors (see below), whose sum is σ = 21492672. Its totient is φ = 7113600.

The previous prime is 13385431. The next prime is 13385531. The reversal of 13385445 is 54458331.

Added to its reverse (54458331) it gives a triangular number (67843776 = T₁₁₆₄₈).

It is not a de Polignac number, because 13385445 - 2¹⁴ = 13369061 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3270 + ... + 6120.

It is an arithmetic number, because the mean of its divisors is an integer number (1343292).

Almost surely, 2^13385445 is an apocalyptic number.

13385445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13385445 is a deficient number, since it is larger than the sum of its proper divisors (8107227).

13385445 is a wasteful number, since it uses less digits than its factorization.

13385445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3172.

The product of its digits is 28800, while the sum is 33.

The square root of 13385445 is about 3658.6124418965. The cubic root of 13385445 is about 237.4347447684.

Adding to 13385445 its reverse (54458331), we get a triangular number (67843776 = T₁₁₆₄₈).

The spelling of 13385445 in words is "thirteen million, three hundred eighty-five thousand, four hundred forty-five".