133797530 has 16 divisors (see below), whose sum is σ = 242454600. Its totient is φ = 53159232.

The previous prime is 133797529. The next prime is 133797533. The reversal of 133797530 is 35797331.

It can be written as a sum of positive squares in 4 ways, for example, as 58507201 + 75290329 = 7649^2 + 8677^2 .

It is not an unprimeable number, because it can be changed into a prime (133797533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43409 + ... + 46388.

Almost surely, 2^133797530 is an apocalyptic number.

133797530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133797530 is a deficient number, since it is larger than the sum of its proper divisors (108657070).

133797530 is a wasteful number, since it uses less digits than its factorization.

133797530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89953.

The product of its (nonzero) digits is 59535, while the sum is 38.

The square root of 133797530 is about 11567.0882247867. The cubic root of 133797530 is about 511.4651320501.

The spelling of 133797530 in words is "one hundred thirty-three million, seven hundred ninety-seven thousand, five hundred thirty".