13283145 has 24 divisors (see below), whose sum is σ = 23142600. Its totient is φ = 7047936.

The previous prime is 13283143. The next prime is 13283191. The reversal of 13283145 is 54138231.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6170256 + 7112889 = 2484^2 + 2667^2 .

It is not a de Polignac number, because 13283145 - 2¹ = 13283143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13283143) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 9661 + ... + 10949.

It is an arithmetic number, because the mean of its divisors is an integer number (964275).

Almost surely, 2^13283145 is an apocalyptic number.

13283145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13283145 is a deficient number, since it is larger than the sum of its proper divisors (9859455).

13283145 is a wasteful number, since it uses less digits than its factorization.

13283145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529 (or 1526 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 13283145 is about 3644.6049168600. The cubic root of 13283145 is about 236.8283219659.

Adding to 13283145 its product of digits (2880), we get a square (13286025 = 3645²).

The spelling of 13283145 in words is "thirteen million, two hundred eighty-three thousand, one hundred forty-five".