133333893 has 36 divisors (see below), whose sum is σ = 241949344. Its totient is φ = 69260400.

The previous prime is 133333859. The next prime is 133333901. The reversal of 133333893 is 398333331.

It is not a de Polignac number, because 133333893 - 2¹⁰ = 133332869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133333813) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1123 + ... + 16368.

Almost surely, 2^133333893 is an apocalyptic number.

It is an amenable number.

133333893 is a deficient number, since it is larger than the sum of its proper divisors (108615451).

133333893 is a wasteful number, since it uses less digits than its factorization.

133333893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17526 (or 17512 counting only the distinct ones).

The product of its digits is 52488, while the sum is 36.

The square root of 133333893 is about 11547.0296180446. The cubic root of 133333893 is about 510.8736697244.

The spelling of 133333893 in words is "one hundred thirty-three million, three hundred thirty-three thousand, eight hundred ninety-three".