1306413233 has 2 divisors, whose sum is σ = 1306413234. Its totient is φ = 1306413232.

The previous prime is 1306413221. The next prime is 1306413239. The reversal of 1306413233 is 3323146031.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1104432289 + 201980944 = 33233^2 + 14212^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1306413233 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1306413239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 653206616 + 653206617.

It is an arithmetic number, because the mean of its divisors is an integer number (653206617).

Almost surely, 2^1306413233 is an apocalyptic number.

It is an amenable number.

1306413233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1306413233 is an equidigital number, since it uses as much as digits as its factorization.

1306413233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 1306413233 is about 36144.3388790001. The cubic root of 1306413233 is about 1093.1846467590.

Adding to 1306413233 its reverse (3323146031), we get a palindrome (4629559264).

The spelling of 1306413233 in words is "one billion, three hundred six million, four hundred thirteen thousand, two hundred thirty-three".