13513487 has 16 divisors (see below), whose sum is σ = 15748992. Its totient is φ = 11481600.

The previous prime is 13513469. The next prime is 13513499. The reversal of 13513487 is 78431531.

13513487 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13513487 - 2²² = 9319183 is a prime.

It is a super-2 number, since 2×13513487² = 365228661798338, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13513387) 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, 9737 + ... + 11037.

It is an arithmetic number, because the mean of its divisors is an integer number (984312).

Almost surely, 2^13513487 is an apocalyptic number.

13513487 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

13513487 is a deficient number, since it is larger than the sum of its proper divisors (2235505).

13513487 is a wasteful number, since it uses less digits than its factorization.

13513487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378.

The product of its digits is 10080, while the sum is 32.

The square root of 13513487 is about 3676.0695042395. The cubic root of 13513487 is about 238.1894250263.

The spelling of 13513487 in words is "thirteen million, five hundred thirteen thousand, four hundred eighty-seven".