133020617 has 4 divisors (see below), whose sum is σ = 133115520. Its totient is φ = 132925716.

The previous prime is 133020611. The next prime is 133020647. The reversal of 133020617 is 716020331.

It is a happy number.

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 133020617 - 2⁶ = 133020553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133020592 and 133020601.

It is not an unprimeable number, because it can be changed into a prime (133020611) 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, 45317 + ... + 48162.

It is an arithmetic number, because the mean of its divisors is an integer number (33278880).

Almost surely, 2^133020617 is an apocalyptic number.

It is an amenable number.

133020617 is a deficient number, since it is larger than the sum of its proper divisors (94903).

133020617 is an equidigital number, since it uses as much as digits as its factorization.

133020617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94902.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 133020617 is about 11533.4564203451. The cubic root of 133020617 is about 510.4732464844.

Adding to 133020617 its reverse (716020331), we get a palindrome (849040948).

The spelling of 133020617 in words is "one hundred thirty-three million, twenty thousand, six hundred seventeen".