20130254459 has 4 divisors (see below), whose sum is σ = 23006005104. Its totient is φ = 17254503816.

The previous prime is 20130254449. The next prime is 20130254477. The reversal of 20130254459 is 95445203102.

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

It is a cyclic number.

It is not a de Polignac number, because 20130254459 - 2⁸ = 20130254203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20130254429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1437875312 + ... + 1437875325.

It is an arithmetic number, because the mean of its divisors is an integer number (5751501276).

Almost surely, 2^20130254459 is an apocalyptic number.

20130254459 is a deficient number, since it is larger than the sum of its proper divisors (2875750645).

20130254459 is an equidigital number, since it uses as much as digits as its factorization.

20130254459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2875750644.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 20130254459 in words is "twenty billion, one hundred thirty million, two hundred fifty-four thousand, four hundred fifty-nine".