304140133 has 8 divisors (see below), whose sum is σ = 332717760. Its totient is φ = 275717280.

The previous prime is 304140131. The next prime is 304140143. The reversal of 304140133 is 331041403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 304140133 - 2¹ = 304140131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 304140133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304140131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34560 + ... + 42457.

It is an arithmetic number, because the mean of its divisors is an integer number (41589720).

Almost surely, 2^304140133 is an apocalyptic number.

It is an amenable number.

304140133 is a deficient number, since it is larger than the sum of its proper divisors (28577627).

304140133 is a wasteful number, since it uses less digits than its factorization.

304140133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77387.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 304140133 is about 17439.6139005426. The cubic root of 304140133 is about 672.4983820896.

Adding to 304140133 its reverse (331041403), we get a palindrome (635181536).

The spelling of 304140133 in words is "three hundred four million, one hundred forty thousand, one hundred thirty-three".