133877833 has 16 divisors (see below), whose sum is σ = 143312400. Its totient is φ = 124830720.

The previous prime is 133877801. The next prime is 133877867. The reversal of 133877833 is 338778331.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 2271049 + 131606784 = 1507^2 + 11472^2 .

It is a cyclic number.

It is not a de Polignac number, because 133877833 - 2⁵ = 133877801 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133877833.

It is not an unprimeable number, because it can be changed into a prime (133877893) 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, 129085 + ... + 130117.

It is an arithmetic number, because the mean of its divisors is an integer number (8957025).

Almost surely, 2^133877833 is an apocalyptic number.

It is an amenable number.

133877833 is a deficient number, since it is larger than the sum of its proper divisors (9434567).

133877833 is a wasteful number, since it uses less digits than its factorization.

133877833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212.

The product of its digits is 254016, while the sum is 43.

The square root of 133877833 is about 11570.5588888351. The cubic root of 133877833 is about 511.5674358079.

The spelling of 133877833 in words is "one hundred thirty-three million, eight hundred seventy-seven thousand, eight hundred thirty-three".