133396109 has 16 divisors (see below), whose sum is σ = 169136640. Its totient is φ = 102179760.

The previous prime is 133396091. The next prime is 133396111. The reversal of 133396109 is 901693331.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133396109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133396009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10139 + ... + 19224.

It is an arithmetic number, because the mean of its divisors is an integer number (10571040).

Almost surely, 2^133396109 is an apocalyptic number.

It is an amenable number.

133396109 is a deficient number, since it is larger than the sum of its proper divisors (35740531).

133396109 is a wasteful number, since it uses less digits than its factorization.

133396109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29440.

The product of its (nonzero) digits is 13122, while the sum is 35.

The square root of 133396109 is about 11549.7233300196. The cubic root of 133396109 is about 510.9531183254.

The spelling of 133396109 in words is "one hundred thirty-three million, three hundred ninety-six thousand, one hundred nine".