13513747 has 8 divisors (see below), whose sum is σ = 14641760. Its totient is φ = 12472200.

The previous prime is 13513733. The next prime is 13513751. The reversal of 13513747 is 74731531.

It is not a de Polignac number, because 13513747 - 2¹¹ = 13511699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13513847) 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 7 ways as a sum of consecutive naturals, for example, 879 + ... + 5272.

It is an arithmetic number, because the mean of its divisors is an integer number (1830220).

Almost surely, 2^13513747 is an apocalyptic number.

13513747 is a deficient number, since it is larger than the sum of its proper divisors (1128013).

13513747 is an frugal number, since it uses more digits than its factorization.

13513747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6190 (or 6164 counting only the distinct ones).

The product of its digits is 8820, while the sum is 31.

The square root of 13513747 is about 3676.1048679275. The cubic root of 13513747 is about 238.1909526077.

The spelling of 13513747 in words is "thirteen million, five hundred thirteen thousand, seven hundred forty-seven".