130542403 has 4 divisors (see below), whose sum is σ = 130916800. Its totient is φ = 130168008.

The previous prime is 130542389. The next prime is 130542409. The reversal of 130542403 is 304245031.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130542403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130542409) 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 3 ways as a sum of consecutive naturals, for example, 186675 + ... + 187372.

It is an arithmetic number, because the mean of its divisors is an integer number (32729200).

Almost surely, 2^130542403 is an apocalyptic number.

130542403 is a deficient number, since it is larger than the sum of its proper divisors (374397).

130542403 is an equidigital number, since it uses as much as digits as its factorization.

130542403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374396.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 130542403 is about 11425.5154369508. The cubic root of 130542403 is about 507.2832636771.

Adding to 130542403 its reverse (304245031), we get a palindrome (434787434).

The spelling of 130542403 in words is "one hundred thirty million, five hundred forty-two thousand, four hundred three".