1306135357 has 4 divisors (see below), whose sum is σ = 1306329696. Its totient is φ = 1305941020.

The previous prime is 1306135351. The next prime is 1306135403. The reversal of 1306135357 is 7535316031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1306135357 - 2³ = 1306135349 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 (1306135351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86713 + ... + 100654.

It is an arithmetic number, because the mean of its divisors is an integer number (326582424).

Almost surely, 2^1306135357 is an apocalyptic number.

It is an amenable number.

1306135357 is a deficient number, since it is larger than the sum of its proper divisors (194339).

1306135357 is an equidigital number, since it uses as much as digits as its factorization.

1306135357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194338.

The product of its (nonzero) digits is 28350, while the sum is 34.

The square root of 1306135357 is about 36140.4946977763. The cubic root of 1306135357 is about 1093.1071339402.

The spelling of 1306135357 in words is "one billion, three hundred six million, one hundred thirty-five thousand, three hundred fifty-seven".