130533521 has 8 divisors (see below), whose sum is σ = 135121920. Its totient is φ = 126001008.

The previous prime is 130533503. The next prime is 130533527. The reversal of 130533521 is 125335031.

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

It is a cyclic number.

It is not a de Polignac number, because 130533521 - 2²² = 126339217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130533527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9191 + ... + 18588.

It is an arithmetic number, because the mean of its divisors is an integer number (16890240).

Almost surely, 2^130533521 is an apocalyptic number.

It is an amenable number.

130533521 is a deficient number, since it is larger than the sum of its proper divisors (4588399).

130533521 is a wasteful number, since it uses less digits than its factorization.

130533521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27943.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 130533521 is about 11425.1267389032. The cubic root of 130533521 is about 507.2717583679.

Adding to 130533521 its reverse (125335031), we get a palindrome (255868552).

The spelling of 130533521 in words is "one hundred thirty million, five hundred thirty-three thousand, five hundred twenty-one".