133078833 has 12 divisors (see below), whose sum is σ = 192922548. Its totient is φ = 88397280.

The previous prime is 133078783. The next prime is 133078837. The reversal of 133078833 is 338870331.

It can be written as a sum of positive squares in 2 ways, for example, as 20358144 + 112720689 = 4512^2 + 10617^2 .

It is not a de Polignac number, because 133078833 - 2¹⁰ = 133077809 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (133078837) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24198 + ... + 29183.

It is an arithmetic number, because the mean of its divisors is an integer number (16076879).

Almost surely, 2^133078833 is an apocalyptic number.

It is an amenable number.

133078833 is a deficient number, since it is larger than the sum of its proper divisors (59843715).

133078833 is a wasteful number, since it uses less digits than its factorization.

133078833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53664 (or 53661 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 133078833 is about 11535.9799323681. The cubic root of 133078833 is about 510.5477045571.

The spelling of 133078833 in words is "one hundred thirty-three million, seventy-eight thousand, eight hundred thirty-three".