13530771 has 6 divisors (see below), whose sum is σ = 19544460. Its totient is φ = 9020508.

The previous prime is 13530763. The next prime is 13530809. The reversal of 13530771 is 17703531.

13530771 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 13530771 - 2³ = 13530763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13530701) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 751701 + ... + 751718.

It is an arithmetic number, because the mean of its divisors is an integer number (3257410).

Almost surely, 2^13530771 is an apocalyptic number.

13530771 is a deficient number, since it is larger than the sum of its proper divisors (6013689).

13530771 is a wasteful number, since it uses less digits than its factorization.

13530771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503425 (or 1503422 counting only the distinct ones).

The product of its (nonzero) digits is 2205, while the sum is 27.

The square root of 13530771 is about 3678.4196334839. The cubic root of 13530771 is about 238.2909313236.

The spelling of 13530771 in words is "thirteen million, five hundred thirty thousand, seven hundred seventy-one".