133099861009 has 2 divisors, whose sum is σ = 133099861010. Its totient is φ = 133099861008.

The previous prime is 133099860977. The next prime is 133099861019. The reversal of 133099861009 is 900168990331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88299905409 + 44799955600 = 297153^2 + 211660^2 .

It is a cyclic number.

It is not a de Polignac number, because 133099861009 - 2⁵ = 133099860977 is a prime.

It is not a weakly prime, because it can be changed into another prime (133099861019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66549930504 + 66549930505.

It is an arithmetic number, because the mean of its divisors is an integer number (66549930505).

Almost surely, 2^133099861009 is an apocalyptic number.

It is an amenable number.

133099861009 is a deficient number, since it is larger than the sum of its proper divisors (1).

133099861009 is an equidigital number, since it uses as much as digits as its factorization.

133099861009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 314928, while the sum is 49.

The spelling of 133099861009 in words is "one hundred thirty-three billion, ninety-nine million, eight hundred sixty-one thousand, nine".