13528047 has 8 divisors (see below), whose sum is σ = 19424944. Its totient is φ = 8324928.

The previous prime is 13528043. The next prime is 13528063. The reversal of 13528047 is 74082531.

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

It is not a de Polignac number, because 13528047 - 2² = 13528043 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13528043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173398 + ... + 173475.

It is an arithmetic number, because the mean of its divisors is an integer number (2428118).

Almost surely, 2^13528047 is an apocalyptic number.

13528047 is a deficient number, since it is larger than the sum of its proper divisors (5896897).

13528047 is a wasteful number, since it uses less digits than its factorization.

13528047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346889.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 13528047 is about 3678.0493471404. The cubic root of 13528047 is about 238.2749394272.

It can be divided in two parts, 135 and 28047, that added together give a palindrome (28182).

The spelling of 13528047 in words is "thirteen million, five hundred twenty-eight thousand, forty-seven".