133788117 has 8 divisors (see below), whose sum is σ = 178556224. Its totient is φ = 89106048.

The previous prime is 133788091. The next prime is 133788163. The reversal of 133788117 is 711887331.

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

It is not a de Polignac number, because 133788117 - 2⁸ = 133787861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133788167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17788 + ... + 24165.

It is an arithmetic number, because the mean of its divisors is an integer number (22319528).

Almost surely, 2^133788117 is an apocalyptic number.

It is an amenable number.

133788117 is a deficient number, since it is larger than the sum of its proper divisors (44768107).

133788117 is a wasteful number, since it uses less digits than its factorization.

133788117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43019.

The product of its digits is 28224, while the sum is 39.

The square root of 133788117 is about 11566.6813304422. The cubic root of 133788117 is about 511.4531374734.

The spelling of 133788117 in words is "one hundred thirty-three million, seven hundred eighty-eight thousand, one hundred seventeen".