1420027565 has 12 divisors (see below), whose sum is σ = 1873028892. Its totient is φ = 1032746880.

The previous prime is 1420027541. The next prime is 1420027577. The reversal of 1420027565 is 5657200241.

It can be written as a sum of positive squares in 2 ways, for example, as 933119209 + 486908356 = 30547^2 + 22066^2 .

It is not a de Polignac number, because 1420027565 - 2³⁰ = 346285741 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 1172972 + ... + 1174181.

It is an arithmetic number, because the mean of its divisors is an integer number (156085741).

Almost surely, 2^1420027565 is an apocalyptic number.

It is an amenable number.

1420027565 is a deficient number, since it is larger than the sum of its proper divisors (453001327).

1420027565 is a wasteful number, since it uses less digits than its factorization.

1420027565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2347180 (or 2347169 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 1420027565 is about 37683.2531106326. The cubic root of 1420027565 is about 1123.9981375268.

The spelling of 1420027565 in words is "one billion, four hundred twenty million, twenty-seven thousand, five hundred sixty-five".