1452281618 has 6 divisors (see below), whose sum is σ = 2178503271. Its totient is φ = 726113862.

The previous prime is 1452281573. The next prime is 1452281647. The reversal of 1452281618 is 8161822541.

It can be written as a sum of positive squares in only one way, i.e., 726140809 + 726140809 = 26947^2 + 26947^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=26947.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 40421 + ... + 67367.

Almost surely, 2^1452281618 is an apocalyptic number.

1452281618 is a deficient number, since it is larger than the sum of its proper divisors (726221653).

1452281618 is an frugal number, since it uses more digits than its factorization.

1452281618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53896 (or 26949 counting only the distinct ones).

The product of its digits is 30720, while the sum is 38.

The square root of 1452281618 is about 38108.8128652678. The cubic root of 1452281618 is about 1132.4445519913. Note that the first 3 decimals are identical.

The spelling of 1452281618 in words is "one billion, four hundred fifty-two million, two hundred eighty-one thousand, six hundred eighteen".