1304065061 has 8 divisors (see below), whose sum is σ = 1404737880. Its totient is φ = 1203443712.

The previous prime is 1304065043. The next prime is 1304065073. The reversal of 1304065061 is 1605604031.

It can be written as a sum of positive squares in 4 ways, for example, as 222904900 + 1081160161 = 14930^2 + 32881^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1304065061 - 2⁶ = 1304064997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1304065061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304065261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51845 + ... + 72773.

It is an arithmetic number, because the mean of its divisors is an integer number (175592235).

Almost surely, 2^1304065061 is an apocalyptic number.

It is an amenable number.

1304065061 is a deficient number, since it is larger than the sum of its proper divisors (100672819).

1304065061 is a wasteful number, since it uses less digits than its factorization.

1304065061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25735.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1304065061 is about 36111.8410081790. The cubic root of 1304065061 is about 1092.5292836539.

Adding to 1304065061 its reverse (1605604031), we get a palindrome (2909669092).

The spelling of 1304065061 in words is "one billion, three hundred four million, sixty-five thousand, sixty-one".