133031660440409 has 2 divisors, whose sum is σ = 133031660440410. Its totient is φ = 133031660440408.

The previous prime is 133031660440391. The next prime is 133031660440519. The reversal of 133031660440409 is 904044066130331.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114045248564809 + 18986411875600 = 10679197^2 + 4357340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133031660440409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133031660440409.

It is not a weakly prime, because it can be changed into another prime (133031660440109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66515830220204 + 66515830220205.

It is an arithmetic number, because the mean of its divisors is an integer number (66515830220205).

Almost surely, 2^{133031660440409} is an apocalyptic number.

It is an amenable number.

133031660440409 is a deficient number, since it is larger than the sum of its proper divisors (1).

133031660440409 is an equidigital number, since it uses as much as digits as its factorization.

133031660440409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 44.

The spelling of 133031660440409 in words is "one hundred thirty-three trillion, thirty-one billion, six hundred sixty million, four hundred forty thousand, four hundred nine".