133905055 has 8 divisors (see below), whose sum is σ = 160754400. Its totient is φ = 107078496.

The previous prime is 133905019. The next prime is 133905071. The reversal of 133905055 is 550509331.

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

It is a cyclic number.

It is not a de Polignac number, because 133905055 - 2⁹ = 133904543 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12561 + ... + 20629.

It is an arithmetic number, because the mean of its divisors is an integer number (20094300).

Almost surely, 2^133905055 is an apocalyptic number.

133905055 is a deficient number, since it is larger than the sum of its proper divisors (26849345).

133905055 is an equidigital number, since it uses as much as digits as its factorization.

133905055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11393.

The product of its (nonzero) digits is 10125, while the sum is 31.

The square root of 133905055 is about 11571.7351767140. The cubic root of 133905055 is about 511.6021065836.

The spelling of 133905055 in words is "one hundred thirty-three million, nine hundred five thousand, fifty-five".