13480257 has 16 divisors (see below), whose sum is σ = 21204992. Its totient is φ = 7454160.

The previous prime is 13480241. The next prime is 13480283. The reversal of 13480257 is 75208431.

It is not a de Polignac number, because 13480257 - 2⁴ = 13480241 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (13480237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9703 + ... + 11004.

It is an arithmetic number, because the mean of its divisors is an integer number (1325312).

Almost surely, 2^13480257 is an apocalyptic number.

It is an amenable number.

13480257 is a deficient number, since it is larger than the sum of its proper divisors (7724735).

13480257 is a wasteful number, since it uses less digits than its factorization.

13480257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20748.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 13480257 is about 3671.5469491755. The cubic root of 13480257 is about 237.9940268727.

Adding to 13480257 its reverse (75208431), we get a palindrome (88688688).

The spelling of 13480257 in words is "thirteen million, four hundred eighty thousand, two hundred fifty-seven".