133219855 has 16 divisors (see below), whose sum is σ = 164229120. Its totient is φ = 103692832.

The previous prime is 133219843. The next prime is 133219859. The reversal of 133219855 is 558912331.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 133219855 - 2⁷ = 133219727 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133219859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40482 + ... + 43648.

It is an arithmetic number, because the mean of its divisors is an integer number (10264320).

Almost surely, 2^133219855 is an apocalyptic number.

133219855 is a deficient number, since it is larger than the sum of its proper divisors (31009265).

133219855 is a wasteful number, since it uses less digits than its factorization.

133219855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3398.

The product of its digits is 32400, while the sum is 37.

The square root of 133219855 is about 11542.0905818660. The cubic root of 133219855 is about 510.7279812642.

The spelling of 133219855 in words is "one hundred thirty-three million, two hundred nineteen thousand, eight hundred fifty-five".