133720097 has 8 divisors (see below), whose sum is σ = 154540800. Its totient is φ = 113328864.

The previous prime is 133720057. The next prime is 133720099. The reversal of 133720097 is 790027331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133720097 - 2⁶ = 133720033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133720099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106697 + ... + 107942.

It is an arithmetic number, because the mean of its divisors is an integer number (19317600).

Almost surely, 2^133720097 is an apocalyptic number.

It is an amenable number.

133720097 is a deficient number, since it is larger than the sum of its proper divisors (20820703).

133720097 is an equidigital number, since it uses as much as digits as its factorization.

133720097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214735.

The product of its (nonzero) digits is 7938, while the sum is 32.

The square root of 133720097 is about 11563.7406145244. The cubic root of 133720097 is about 511.3664458184.

The spelling of 133720097 in words is "one hundred thirty-three million, seven hundred twenty thousand, ninety-seven".