133959350309 has 2 divisors, whose sum is σ = 133959350310. Its totient is φ = 133959350308.

The previous prime is 133959350293. The next prime is 133959350339. The reversal of 133959350309 is 903053959331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107110889284 + 26848461025 = 327278^2 + 163855^2 .

It is an emirp because it is prime and its reverse (903053959331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133959350309 - 2⁴ = 133959350293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133959350339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66979675154 + 66979675155.

It is an arithmetic number, because the mean of its divisors is an integer number (66979675155).

Almost surely, 2^133959350309 is an apocalyptic number.

It is an amenable number.

133959350309 is a deficient number, since it is larger than the sum of its proper divisors (1).

133959350309 is an equidigital number, since it uses as much as digits as its factorization.

133959350309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1476225, while the sum is 50.

The spelling of 133959350309 in words is "one hundred thirty-three billion, nine hundred fifty-nine million, three hundred fifty thousand, three hundred nine".