133903843 has 8 divisors (see below), whose sum is σ = 135298800. Its totient is φ = 132515328.

The previous prime is 133903841. The next prime is 133903853. The reversal of 133903843 is 348309331.

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 133903843 - 2¹ = 133903841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133903799 and 133903808.

It is not an unprimeable number, because it can be changed into a prime (133903841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47703 + ... + 50431.

It is an arithmetic number, because the mean of its divisors is an integer number (16912350).

Almost surely, 2^133903843 is an apocalyptic number.

133903843 is a deficient number, since it is larger than the sum of its proper divisors (1394957).

133903843 is a wasteful number, since it uses less digits than its factorization.

133903843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3221.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 133903843 is about 11571.6828076127. The cubic root of 133903843 is about 511.6005630431.

The spelling of 133903843 in words is "one hundred thirty-three million, nine hundred three thousand, eight hundred forty-three".