1420054243 has 16 divisors (see below), whose sum is σ = 1513965600. Its totient is φ = 1328140800.

The previous prime is 1420054211. The next prime is 1420054261. The reversal of 1420054243 is 3424500241.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1420054243 - 2⁵ = 1420054211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1420052243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 830073 + ... + 831781.

It is an arithmetic number, because the mean of its divisors is an integer number (94622850).

Almost surely, 2^1420054243 is an apocalyptic number.

1420054243 is a deficient number, since it is larger than the sum of its proper divisors (93911357).

1420054243 is a wasteful number, since it uses less digits than its factorization.

1420054243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2262.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 1420054243 is about 37683.6070858404. The cubic root of 1420054243 is about 1124.0051763185.

Adding to 1420054243 its reverse (3424500241), we get a palindrome (4844554484).

The spelling of 1420054243 in words is "one billion, four hundred twenty million, fifty-four thousand, two hundred forty-three".