13385745 has 24 divisors (see below), whose sum is σ = 23423400. Its totient is φ = 7070976.

The previous prime is 13385731. The next prime is 13385759. The reversal of 13385745 is 54758331.

It is an interprime number because it is at equal distance from previous prime (13385731) and next prime (13385759).

It can be written as a sum of positive squares in 4 ways, for example, as 5817744 + 7568001 = 2412^2 + 2751^2 .

It is not a de Polignac number, because 13385745 - 2¹¹ = 13383697 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3541 + ... + 6269.

It is an arithmetic number, because the mean of its divisors is an integer number (975975).

Almost surely, 2^13385745 is an apocalyptic number.

13385745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13385745 is a deficient number, since it is larger than the sum of its proper divisors (10037655).

13385745 is a wasteful number, since it uses less digits than its factorization.

13385745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2849 (or 2846 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 13385745 is about 3658.6534408167. The cubic root of 13385745 is about 237.4365185830.

The spelling of 13385745 in words is "thirteen million, three hundred eighty-five thousand, seven hundred forty-five".