133575455 has 16 divisors (see below), whose sum is σ = 173357184. Its totient is φ = 98219520.

The previous prime is 133575413. The next prime is 133575461. The reversal of 133575455 is 554575331.

It is not a de Polignac number, because 133575455 - 2⁶ = 133575391 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11402 + ... + 19928.

It is an arithmetic number, because the mean of its divisors is an integer number (10834824).

Almost surely, 2^133575455 is an apocalyptic number.

133575455 is a deficient number, since it is larger than the sum of its proper divisors (39781729).

133575455 is a wasteful number, since it uses less digits than its factorization.

133575455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8786.

The product of its digits is 157500, while the sum is 38.

The square root of 133575455 is about 11557.4848042297. The cubic root of 133575455 is about 511.1820014656.

The spelling of 133575455 in words is "one hundred thirty-three million, five hundred seventy-five thousand, four hundred fifty-five".