1302513005 has 4 divisors (see below), whose sum is σ = 1563015612. Its totient is φ = 1042010400.

The previous prime is 1302512999. The next prime is 1302513007. The reversal of 1302513005 is 5003152031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 177715561 + 1124797444 = 13331^2 + 33538^2 .

It is not a de Polignac number, because 1302513005 - 2¹⁰ = 1302511981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302513007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130251296 + ... + 130251305.

It is an arithmetic number, because the mean of its divisors is an integer number (390753903).

Almost surely, 2^1302513005 is an apocalyptic number.

It is an amenable number.

1302513005 is a deficient number, since it is larger than the sum of its proper divisors (260502607).

1302513005 is an equidigital number, since it uses as much as digits as its factorization.

1302513005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260502606.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 1302513005 is about 36090.3450385280. The cubic root of 1302513005 is about 1092.0956805986.

Adding to 1302513005 its reverse (5003152031), we get a palindrome (6305665036).

The spelling of 1302513005 in words is "one billion, three hundred two million, five hundred thirteen thousand, five".