1420500543 has 32 divisors (see below), whose sum is σ = 2409561600. Its totient is φ = 737916480.

The previous prime is 1420500509. The next prime is 1420500551. The reversal of 1420500543 is 3450050241.

It is not a de Polignac number, because 1420500543 - 2¹⁶ = 1420435007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420500583) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51430 + ... + 74067.

It is an arithmetic number, because the mean of its divisors is an integer number (75298800).

Almost surely, 2^1420500543 is an apocalyptic number.

1420500543 is a deficient number, since it is larger than the sum of its proper divisors (989061057).

1420500543 is a wasteful number, since it uses less digits than its factorization.

1420500543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125532 (or 125518 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 1420500543 is about 37689.5282936786. The cubic root of 1420500543 is about 1124.1229161793.

Adding to 1420500543 its reverse (3450050241), we get a palindrome (4870550784).

The spelling of 1420500543 in words is "one billion, four hundred twenty million, five hundred thousand, five hundred forty-three".