1420544503 has 8 divisors (see below), whose sum is σ = 1623979808. Its totient is φ = 1217234304.

The previous prime is 1420544491. The next prime is 1420544513. The reversal of 1420544503 is 3054450241.

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 1420544503 - 2⁹ = 1420543991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420544513) 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, 5526 + ... + 53587.

It is an arithmetic number, because the mean of its divisors is an integer number (202997476).

Almost surely, 2^1420544503 is an apocalyptic number.

1420544503 is a deficient number, since it is larger than the sum of its proper divisors (203435305).

1420544503 is an equidigital number, since it uses as much as digits as its factorization.

1420544503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62553.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 1420544503 is about 37690.1114750275. Note that the first 3 decimals coincide. The cubic root of 1420544503 is about 1124.1345120762.

Adding to 1420544503 its reverse (3054450241), we get a palindrome (4474994744).

The spelling of 1420544503 in words is "one billion, four hundred twenty million, five hundred forty-four thousand, five hundred three".