133243783 has 8 divisors (see below), whose sum is σ = 136391040. Its totient is φ = 130131960.

The previous prime is 133243763. The next prime is 133243813. The reversal of 133243783 is 387342331.

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 133243783 - 2¹³ = 133235591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133243723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1173 + ... + 16366.

It is an arithmetic number, because the mean of its divisors is an integer number (17048880).

Almost surely, 2^133243783 is an apocalyptic number.

133243783 is a deficient number, since it is larger than the sum of its proper divisors (3147257).

133243783 is a wasteful number, since it uses less digits than its factorization.

133243783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17717.

The product of its digits is 36288, while the sum is 34.

The square root of 133243783 is about 11543.1270893116. The cubic root of 133243783 is about 510.7585572058.

The spelling of 133243783 in words is "one hundred thirty-three million, two hundred forty-three thousand, seven hundred eighty-three".