13487243 has 16 divisors (see below), whose sum is σ = 16982784. Its totient is φ = 10404960.

The previous prime is 13487213. The next prime is 13487249. The reversal of 13487243 is 34278431.

It is a cyclic number.

It is not a de Polignac number, because 13487243 - 2²² = 9292939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13487249) 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 15 ways as a sum of consecutive naturals, for example, 7421 + ... + 9057.

It is an arithmetic number, because the mean of its divisors is an integer number (1061424).

Almost surely, 2^13487243 is an apocalyptic number.

13487243 is a deficient number, since it is larger than the sum of its proper divisors (3495541).

13487243 is a wasteful number, since it uses less digits than its factorization.

13487243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1762.

The product of its digits is 16128, while the sum is 32.

The square root of 13487243 is about 3672.4981960513. The cubic root of 13487243 is about 238.0351323981.

The spelling of 13487243 in words is "thirteen million, four hundred eighty-seven thousand, two hundred forty-three".