1306411345 has 4 divisors (see below), whose sum is σ = 1567693620. Its totient is φ = 1045129072.

The previous prime is 1306411321. The next prime is 1306411357. The reversal of 1306411345 is 5431146031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5431146031 = 463 ⋅11730337.

It can be written as a sum of positive squares in 2 ways, for example, as 507105361 + 799305984 = 22519^2 + 28272^2 .

It is a cyclic number.

It is not a de Polignac number, because 1306411345 - 2¹¹ = 1306409297 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130641130 + ... + 130641139.

It is an arithmetic number, because the mean of its divisors is an integer number (391923405).

Almost surely, 2^1306411345 is an apocalyptic number.

It is an amenable number.

1306411345 is a deficient number, since it is larger than the sum of its proper divisors (261282275).

1306411345 is an equidigital number, since it uses as much as digits as its factorization.

1306411345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261282274.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1306411345 is about 36144.3127614843. The cubic root of 1306411345 is about 1093.1841201432.

Adding to 1306411345 its reverse (5431146031), we get a palindrome (6737557376).

The spelling of 1306411345 in words is "one billion, three hundred six million, four hundred eleven thousand, three hundred forty-five".