13534457 has 4 divisors (see below), whose sum is σ = 13552740. Its totient is φ = 13516176.

The previous prime is 13534453. The next prime is 13534481. The reversal of 13534457 is 75443531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 364816 + 13169641 = 604^2 + 3629^2 .

It is a cyclic number.

It is not a de Polignac number, because 13534457 - 2² = 13534453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13534453) 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 3 ways as a sum of consecutive naturals, for example, 7982 + ... + 9527.

It is an arithmetic number, because the mean of its divisors is an integer number (3388185).

Almost surely, 2^13534457 is an apocalyptic number.

It is an amenable number.

13534457 is a deficient number, since it is larger than the sum of its proper divisors (18283).

13534457 is an equidigital number, since it uses as much as digits as its factorization.

13534457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18282.

The product of its digits is 25200, while the sum is 32.

The square root of 13534457 is about 3678.9206297500. The cubic root of 13534457 is about 238.3125674552.

Adding to 13534457 its reverse (75443531), we get a palindrome (88977988).

The spelling of 13534457 in words is "thirteen million, five hundred thirty-four thousand, four hundred fifty-seven".