130542521 has 8 divisors (see below), whose sum is σ = 137518080. Its totient is φ = 123577488.

The previous prime is 130542499. The next prime is 130542557. The reversal of 130542521 is 125245031.

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 130542521 - 2¹⁰ = 130541497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130542571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47240 + ... + 49926.

It is an arithmetic number, because the mean of its divisors is an integer number (17189760).

Almost surely, 2^130542521 is an apocalyptic number.

It is an amenable number.

130542521 is a deficient number, since it is larger than the sum of its proper divisors (6975559).

130542521 is a wasteful number, since it uses less digits than its factorization.

130542521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5263.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 130542521 is about 11425.5206008304. The cubic root of 130542521 is about 507.2834165250.

Adding to 130542521 its reverse (125245031), we get a palindrome (255787552).

The spelling of 130542521 in words is "one hundred thirty million, five hundred forty-two thousand, five hundred twenty-one".