133520117 has 4 divisors (see below), whose sum is σ = 136625280. Its totient is φ = 130414956.

The previous prime is 133520039. The next prime is 133520137. The reversal of 133520117 is 711025331.

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.

It is a cyclic number.

It is not a de Polignac number, because 133520117 - 2¹⁸ = 133257973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133520092 and 133520101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133520137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1552517 + ... + 1552602.

It is an arithmetic number, because the mean of its divisors is an integer number (34156320).

Almost surely, 2^133520117 is an apocalyptic number.

It is an amenable number.

133520117 is a deficient number, since it is larger than the sum of its proper divisors (3105163).

133520117 is an equidigital number, since it uses as much as digits as its factorization.

133520117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3105162.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 133520117 is about 11555.0905232283. The cubic root of 133520117 is about 511.1114004287. Note that the first 3 decimals are identical.

Adding to 133520117 its reverse (711025331), we get a palindrome (844545448).

The spelling of 133520117 in words is "one hundred thirty-three million, five hundred twenty thousand, one hundred seventeen".