1309029133 has 2 divisors, whose sum is σ = 1309029134. Its totient is φ = 1309029132.

The previous prime is 1309029103. The next prime is 1309029151. The reversal of 1309029133 is 3319209031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 786129444 + 522899689 = 28038^2 + 22867^2 .

It is a cyclic number.

It is not a de Polignac number, because 1309029133 - 2⁹ = 1309028621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1309029095 and 1309029104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1309029103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 654514566 + 654514567.

It is an arithmetic number, because the mean of its divisors is an integer number (654514567).

Almost surely, 2^1309029133 is an apocalyptic number.

It is an amenable number.

1309029133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1309029133 is an equidigital number, since it uses as much as digits as its factorization.

1309029133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4374, while the sum is 31.

The square root of 1309029133 is about 36180.5076387825. The cubic root of 1309029133 is about 1093.9138073549.

The spelling of 1309029133 in words is "one billion, three hundred nine million, twenty-nine thousand, one hundred thirty-three".