13488457 has 4 divisors (see below), whose sum is σ = 13505940. Its totient is φ = 13470976.

The previous prime is 13488427. The next prime is 13488479. The reversal of 13488457 is 75488431.

13488457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75488431 = 67 ⋅1126693.

It can be written as a sum of positive squares in 2 ways, for example, as 12243001 + 1245456 = 3499^2 + 1116^2 .

It is a cyclic number.

It is not a de Polignac number, because 13488457 - 2²³ = 5099849 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13488427) 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, 7528 + ... + 9145.

It is an arithmetic number, because the mean of its divisors is an integer number (3376485).

Almost surely, 2^13488457 is an apocalyptic number.

It is an amenable number.

13488457 is a deficient number, since it is larger than the sum of its proper divisors (17483).

13488457 is an equidigital number, since it uses as much as digits as its factorization.

13488457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17482.

The product of its digits is 107520, while the sum is 40.

The square root of 13488457 is about 3672.6634749184. The cubic root of 13488457 is about 238.0422741093.

The spelling of 13488457 in words is "thirteen million, four hundred eighty-eight thousand, four hundred fifty-seven".