1048509065 has 16 divisors (see below), whose sum is σ = 1302572880. Its totient is φ = 809276160.

The previous prime is 1048509061. The next prime is 1048509083. The reversal of 1048509065 is 5609058401.

1048509065 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 61795321 + 986713744 = 7861^2 + 31412^2 .

It is not a de Polignac number, because 1048509065 - 2² = 1048509061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1048509061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 343727 + ... + 346763.

It is an arithmetic number, because the mean of its divisors is an integer number (81410805).

Almost surely, 2^1048509065 is an apocalyptic number.

It is an amenable number.

1048509065 is a deficient number, since it is larger than the sum of its proper divisors (254063815).

1048509065 is a wasteful number, since it uses less digits than its factorization.

1048509065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5452.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 1048509065 is about 32380.6896930871. The cubic root of 1048509065 is about 1015.9150556347.

The spelling of 1048509065 in words is "one billion, forty-eight million, five hundred nine thousand, sixty-five".