13281032 has 16 divisors (see below), whose sum is σ = 24985260. Its totient is φ = 6618304.

The previous prime is 13281031. The next prime is 13281041. The reversal of 13281032 is 23018231.

It can be written as a sum of positive squares in 2 ways, for example, as 13205956 + 75076 = 3634^2 + 274^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13280995 and 13281013.

It is not an unprimeable number, because it can be changed into a prime (13281031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83 + ... + 5154.

Almost surely, 2^13281032 is an apocalyptic number.

It is an amenable number.

13281032 is a deficient number, since it is larger than the sum of its proper divisors (11704228).

13281032 is a wasteful number, since it uses less digits than its factorization.

13281032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5560 (or 5556 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 13281032 is about 3644.3150248023. The cubic root of 13281032 is about 236.8157635750.

Adding to 13281032 its reverse (23018231), we get a palindrome (36299263).

The spelling of 13281032 in words is "thirteen million, two hundred eighty-one thousand, thirty-two".