1420224155 has 24 divisors (see below), whose sum is σ = 1959161568. Its totient is φ = 968179968.

The previous prime is 1420224139. The next prime is 1420224181. The reversal of 1420224155 is 5514220241.

It is not a de Polignac number, because 1420224155 - 2⁴ = 1420224139 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4092692 + ... + 4093038.

It is an arithmetic number, because the mean of its divisors is an integer number (81631732).

Almost surely, 2^1420224155 is an apocalyptic number.

1420224155 is a deficient number, since it is larger than the sum of its proper divisors (538937413).

1420224155 is an frugal number, since it uses more digits than its factorization.

1420224155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043 (or 696 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1420224155 is about 37685.8614735022. The cubic root of 1420224155 is about 1124.0500042659.

Adding to 1420224155 its reverse (5514220241), we get a palindrome (6934444396).

The spelling of 1420224155 in words is "one billion, four hundred twenty million, two hundred twenty-four thousand, one hundred fifty-five".