13513457 has 4 divisors (see below), whose sum is σ = 13520880. Its totient is φ = 13506036.

The previous prime is 13513439. The next prime is 13513459. The reversal of 13513457 is 75431531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13513457 - 2¹⁴ = 13497073 is a prime.

It is a super-2 number, since 2×13513457² = 365227040181698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13513459) 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, 1094 + ... + 5312.

It is an arithmetic number, because the mean of its divisors is an integer number (3380220).

Almost surely, 2^13513457 is an apocalyptic number.

It is an amenable number.

13513457 is a deficient number, since it is larger than the sum of its proper divisors (7423).

13513457 is an equidigital number, since it uses as much as digits as its factorization.

13513457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7422.

The product of its digits is 6300, while the sum is 29.

The square root of 13513457 is about 3676.0654237921. The cubic root of 13513457 is about 238.1892487656.

Adding to 13513457 its reverse (75431531), we get a palindrome (88944988).

The spelling of 13513457 in words is "thirteen million, five hundred thirteen thousand, four hundred fifty-seven".