13445385 has 16 divisors (see below), whose sum is σ = 22778496. Its totient is φ = 6748928.

The previous prime is 13445371. The next prime is 13445389. The reversal of 13445385 is 58354431.

It is a cyclic number.

It is not a de Polignac number, because 13445385 - 2⁵ = 13445353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13445389) 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, 26109 + ... + 26618.

It is an arithmetic number, because the mean of its divisors is an integer number (1423656).

Almost surely, 2^13445385 is an apocalyptic number.

13445385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13445385 is a deficient number, since it is larger than the sum of its proper divisors (9333111).

13445385 is a wasteful number, since it uses less digits than its factorization.

13445385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52752.

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

The square root of 13445385 is about 3666.7949219993. The cubic root of 13445385 is about 237.7886278583.

The spelling of 13445385 in words is "thirteen million, four hundred forty-five thousand, three hundred eighty-five".