133999886 has 8 divisors (see below), whose sum is σ = 209739024. Its totient is φ = 64086880.

The previous prime is 133999883. The next prime is 133999907. The reversal of 133999886 is 688999331.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133999883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1456475 + ... + 1456566.

It is an arithmetic number, because the mean of its divisors is an integer number (26217378).

Almost surely, 2^133999886 is an apocalyptic number.

133999886 is a deficient number, since it is larger than the sum of its proper divisors (75739138).

133999886 is a wasteful number, since it uses less digits than its factorization.

133999886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2913066.

The product of its digits is 2519424, while the sum is 56.

The square root of 133999886 is about 11575.8319787392. The cubic root of 133999886 is about 511.7228495757.

The spelling of 133999886 in words is "one hundred thirty-three million, nine hundred ninety-nine thousand, eight hundred eighty-six".