13513423 has 8 divisors (see below), whose sum is σ = 16848000. Its totient is φ = 10529880.

The previous prime is 13513421. The next prime is 13513429. The reversal of 13513423 is 32431531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13513423 - 2¹ = 13513421 is a prime.

It is a super-2 number, since 2×13513423² = 365225202353858, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13513394 and 13513403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13513421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87673 + ... + 87826.

It is an arithmetic number, because the mean of its divisors is an integer number (2106000).

Almost surely, 2^13513423 is an apocalyptic number.

13513423 is a deficient number, since it is larger than the sum of its proper divisors (3334577).

13513423 is a wasteful number, since it uses less digits than its factorization.

13513423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175517.

The product of its digits is 1080, while the sum is 22.

The square root of 13513423 is about 3676.0607992796. The cubic root of 13513423 is about 238.1890490033.

Adding to 13513423 its reverse (32431531), we get a palindrome (45944954).

It can be divided in two parts, 1351 and 3423, that added together give a palindrome (4774).

The spelling of 13513423 in words is "thirteen million, five hundred thirteen thousand, four hundred twenty-three".