1427031065 has 4 divisors (see below), whose sum is σ = 1712437284. Its totient is φ = 1141624848.

The previous prime is 1427031049. The next prime is 1427031071. The reversal of 1427031065 is 5601307241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5601307241 = 853 ⋅6566597.

It can be written as a sum of positive squares in 2 ways, for example, as 349353481 + 1077677584 = 18691^2 + 32828^2 .

It is a cyclic number.

It is not a de Polignac number, because 1427031065 - 2⁴ = 1427031049 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142703102 + ... + 142703111.

It is an arithmetic number, because the mean of its divisors is an integer number (428109321).

Almost surely, 2^1427031065 is an apocalyptic number.

It is an amenable number.

1427031065 is a deficient number, since it is larger than the sum of its proper divisors (285406219).

1427031065 is an equidigital number, since it uses as much as digits as its factorization.

1427031065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285406218.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 1427031065 is about 37776.0647103427. The cubic root of 1427031065 is about 1125.8429409177.

The spelling of 1427031065 in words is "one billion, four hundred twenty-seven million, thirty-one thousand, sixty-five".