1420045555 has 4 divisors (see below), whose sum is σ = 1704054672. Its totient is φ = 1136036440.

The previous prime is 1420045531. The next prime is 1420045559. The reversal of 1420045555 is 5555400241.

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

It is not a de Polignac number, because 1420045555 - 2¹⁵ = 1420012787 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1420045559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142004551 + ... + 142004560.

It is an arithmetic number, because the mean of its divisors is an integer number (426013668).

Almost surely, 2^1420045555 is an apocalyptic number.

1420045555 is a deficient number, since it is larger than the sum of its proper divisors (284009117).

1420045555 is an equidigital number, since it uses as much as digits as its factorization.

1420045555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284009116.

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 1420045555 is about 37683.4918100751. The cubic root of 1420045555 is about 1124.0028840641.

Adding to 1420045555 its reverse (5555400241), we get a palindrome (6975445796).

The spelling of 1420045555 in words is "one billion, four hundred twenty million, forty-five thousand, five hundred fifty-five".