133030312 has 16 divisors (see below), whose sum is σ = 252590400. Its totient is φ = 65672880.

The previous prime is 133030297. The next prime is 133030319. The reversal of 133030312 is 213030331.

It is not an unprimeable number, because it can be changed into a prime (133030319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104614 + ... + 105877.

It is an arithmetic number, because the mean of its divisors is an integer number (15786900).

Almost surely, 2^133030312 is an apocalyptic number.

It is an amenable number.

133030312 is a deficient number, since it is larger than the sum of its proper divisors (119560088).

133030312 is a wasteful number, since it uses less digits than its factorization.

133030312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210576 (or 210572 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 133030312 is about 11533.8767116698. The cubic root of 133030312 is about 510.4856478650.

Adding to 133030312 its reverse (213030331), we get a palindrome (346060643).

The spelling of 133030312 in words is "one hundred thirty-three million, thirty thousand, three hundred twelve".