133105009 has 2 divisors, whose sum is σ = 133105010. Its totient is φ = 133105008.

The previous prime is 133105001. The next prime is 133105031. The reversal of 133105009 is 900501331.

It is an a-pointer prime, because the next prime (133105031) can be obtained adding 133105009 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76177984 + 56927025 = 8728^2 + 7545^2 .

It is a cyclic number.

It is not a de Polignac number, because 133105009 - 2³ = 133105001 is a prime.

It is not a weakly prime, because it can be changed into another prime (133105001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66552504 + 66552505.

It is an arithmetic number, because the mean of its divisors is an integer number (66552505).

Almost surely, 2^133105009 is an apocalyptic number.

It is an amenable number.

133105009 is a deficient number, since it is larger than the sum of its proper divisors (1).

133105009 is an equidigital number, since it uses as much as digits as its factorization.

133105009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 405, while the sum is 22.

The square root of 133105009 is about 11537.1144139252. The cubic root of 133105009 is about 510.5811764982.

The spelling of 133105009 in words is "one hundred thirty-three million, one hundred five thousand, nine".