133144286 has 48 divisors (see below), whose sum is σ = 241315200. Its totient is φ = 54798480.

The previous prime is 133144283. The next prime is 133144313. The reversal of 133144286 is 682441331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133144283) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105125 + ... + 106383.

It is an arithmetic number, because the mean of its divisors is an integer number (5027400).

Almost surely, 2^133144286 is an apocalyptic number.

133144286 is a deficient number, since it is larger than the sum of its proper divisors (108170914).

133144286 is a wasteful number, since it uses less digits than its factorization.

133144286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325 (or 1314 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 133144286 is about 11538.8164904378. The cubic root of 133144286 is about 510.6313928018.

The spelling of 133144286 in words is "one hundred thirty-three million, one hundred forty-four thousand, two hundred eighty-six".