133026109 has 2 divisors, whose sum is σ = 133026110. Its totient is φ = 133026108.

The previous prime is 133026083. The next prime is 133026119. The reversal of 133026109 is 901620331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132020100 + 1006009 = 11490^2 + 1003^2 .

It is an emirp because it is prime and its reverse (901620331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133026109 - 2⁵ = 133026077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133026119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66513054 + 66513055.

It is an arithmetic number, because the mean of its divisors is an integer number (66513055).

Almost surely, 2^133026109 is an apocalyptic number.

It is an amenable number.

133026109 is a deficient number, since it is larger than the sum of its proper divisors (1).

133026109 is an equidigital number, since it uses as much as digits as its factorization.

133026109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 133026109 is about 11533.6945078323. The cubic root of 133026109 is about 510.4802716623.

The spelling of 133026109 in words is "one hundred thirty-three million, twenty-six thousand, one hundred nine".