13541487 has 4 divisors (see below), whose sum is σ = 18055320. Its totient is φ = 9027656.

The previous prime is 13541483. The next prime is 13541497. The reversal of 13541487 is 78414531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13541487 - 2² = 13541483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13541483) 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, 2256912 + ... + 2256917.

It is an arithmetic number, because the mean of its divisors is an integer number (4513830).

Almost surely, 2^13541487 is an apocalyptic number.

13541487 is a deficient number, since it is larger than the sum of its proper divisors (4513833).

13541487 is an equidigital number, since it uses as much as digits as its factorization.

13541487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4513832.

The product of its digits is 13440, while the sum is 33.

The square root of 13541487 is about 3679.8759489961. The cubic root of 13541487 is about 238.3538213542.

It can be divided in two parts, 13541 and 487, that added together give a triangular number (14028 = T₁₆₇).

The spelling of 13541487 in words is "thirteen million, five hundred forty-one thousand, four hundred eighty-seven".