133130725 has 48 divisors (see below), whose sum is σ = 205125760. Its totient is φ = 83462400.

The previous prime is 133130719. The next prime is 133130737. The reversal of 133130725 is 527031331.

It is not a de Polignac number, because 133130725 - 2¹³ = 133122533 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 133130725.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 316015 + ... + 316435.

Almost surely, 2^133130725 is an apocalyptic number.

It is an amenable number.

133130725 is a deficient number, since it is larger than the sum of its proper divisors (71995035).

133130725 is a wasteful number, since it uses less digits than its factorization.

133130725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590 (or 585 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 25.

The square root of 133130725 is about 11538.2288502179. The cubic root of 133130725 is about 510.6140559521.

The spelling of 133130725 in words is "one hundred thirty-three million, one hundred thirty thousand, seven hundred twenty-five".