133043455 has 4 divisors (see below), whose sum is σ = 159652152. Its totient is φ = 106434760.

The previous prime is 133043423. The next prime is 133043459. The reversal of 133043455 is 554340331.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 133043455 - 2⁵ = 133043423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133043459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13304341 + ... + 13304350.

It is an arithmetic number, because the mean of its divisors is an integer number (39913038).

Almost surely, 2^133043455 is an apocalyptic number.

133043455 is a deficient number, since it is larger than the sum of its proper divisors (26608697).

133043455 is an equidigital number, since it uses as much as digits as its factorization.

133043455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26608696.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 133043455 is about 11534.4464539916. The cubic root of 133043455 is about 510.5024588004.

Adding to 133043455 its reverse (554340331), we get a palindrome (687383786).

The spelling of 133043455 in words is "one hundred thirty-three million, forty-three thousand, four hundred fifty-five".