13528541 has 4 divisors (see below), whose sum is σ = 14569212. Its totient is φ = 12487872.

The previous prime is 13528517. The next prime is 13528547. The reversal of 13528541 is 14582531.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3422500 + 10106041 = 1850^2 + 3179^2 .

It is a cyclic number.

It is not a de Polignac number, because 13528541 - 2⁶ = 13528477 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 (13528547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 520316 + ... + 520341.

It is an arithmetic number, because the mean of its divisors is an integer number (3642303).

Almost surely, 2^13528541 is an apocalyptic number.

It is an amenable number.

13528541 is a deficient number, since it is larger than the sum of its proper divisors (1040671).

13528541 is a wasteful number, since it uses less digits than its factorization.

13528541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040670.

The product of its digits is 4800, while the sum is 29.

The square root of 13528541 is about 3678.1165016894. The cubic root of 13528541 is about 238.2778397323.

The spelling of 13528541 in words is "thirteen million, five hundred twenty-eight thousand, five hundred forty-one".