13501028 has 6 divisors (see below), whose sum is σ = 23626806. Its totient is φ = 6750512.

The previous prime is 13501003. The next prime is 13501031. The reversal of 13501028 is 82010531.

It can be written as a sum of positive squares in only one way, i.e., 10549504 + 2951524 = 3248^2 + 1718^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1687625 + ... + 1687632.

It is an arithmetic number, because the mean of its divisors is an integer number (3937801).

Almost surely, 2^13501028 is an apocalyptic number.

It is an amenable number.

13501028 is a deficient number, since it is larger than the sum of its proper divisors (10125778).

13501028 is a wasteful number, since it uses less digits than its factorization.

13501028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3375261 (or 3375259 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 13501028 is about 3674.3745045926. The cubic root of 13501028 is about 238.1162015244.

Adding to 13501028 its reverse (82010531), we get a palindrome (95511559).

The spelling of 13501028 in words is "thirteen million, five hundred one thousand, twenty-eight".