133817117 has 4 divisors (see below), whose sum is σ = 152933856. Its totient is φ = 114700380.

The previous prime is 133817087. The next prime is 133817119. The reversal of 133817117 is 711718331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 711718331 = 2633 ⋅270307.

It is a cyclic number.

It is not a de Polignac number, because 133817117 - 2⁶ = 133817053 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 (133817119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9558359 + ... + 9558372.

It is an arithmetic number, because the mean of its divisors is an integer number (38233464).

Almost surely, 2^133817117 is an apocalyptic number.

It is an amenable number.

133817117 is a deficient number, since it is larger than the sum of its proper divisors (19116739).

133817117 is an equidigital number, since it uses as much as digits as its factorization.

133817117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19116738.

The product of its digits is 3528, while the sum is 32.

The square root of 133817117 is about 11567.9348632329. The cubic root of 133817117 is about 511.4900891095.

The spelling of 133817117 in words is "one hundred thirty-three million, eight hundred seventeen thousand, one hundred seventeen".