133130709 has 56 divisors (see below), whose sum is σ = 212374272. Its totient is φ = 83280960.

The previous prime is 133130681. The next prime is 133130719. The reversal of 133130709 is 907031331.

It is not a de Polignac number, because 133130709 - 2⁹ = 133130197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133130719) 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 55 ways as a sum of consecutive naturals, for example, 971689 + ... + 971825.

Almost surely, 2^133130709 is an apocalyptic number.

It is an amenable number.

133130709 is a deficient number, since it is larger than the sum of its proper divisors (79243563).

133130709 is an equidigital number, since it uses as much as digits as its factorization.

133130709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 1701, while the sum is 27.

The square root of 133130709 is about 11538.2281568705. The cubic root of 133130709 is about 510.6140354965.

The spelling of 133130709 in words is "one hundred thirty-three million, one hundred thirty thousand, seven hundred nine".