133530616 has 48 divisors (see below), whose sum is σ = 263390400. Its totient is φ = 63452928.

The previous prime is 133530611. The next prime is 133530641. The reversal of 133530616 is 616035331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133530611) 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 11 ways as a sum of consecutive naturals, for example, 598681 + ... + 598903.

It is an arithmetic number, because the mean of its divisors is an integer number (5487300).

Almost surely, 2^133530616 is an apocalyptic number.

It is an amenable number.

133530616 is a deficient number, since it is larger than the sum of its proper divisors (129859784).

133530616 is a wasteful number, since it uses less digits than its factorization.

133530616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376 (or 343 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 133530616 is about 11555.5448162343. The cubic root of 133530616 is about 511.1247967070.

Adding to 133530616 its reverse (616035331), we get a palindrome (749565947).

The spelling of 133530616 in words is "one hundred thirty-three million, five hundred thirty thousand, six hundred sixteen".