133005554 has 16 divisors (see below), whose sum is σ = 218030400. Its totient is φ = 60350160.

The previous prime is 133005553. The next prime is 133005557. The reversal of 133005554 is 455500331.

133005554 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (133005553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8132 + ... + 18224.

It is an arithmetic number, because the mean of its divisors is an integer number (13626900).

Almost surely, 2^133005554 is an apocalyptic number.

133005554 is a deficient number, since it is larger than the sum of its proper divisors (85024846).

133005554 is a wasteful number, since it uses less digits than its factorization.

133005554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10705.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 133005554 is about 11532.8033885955. The cubic root of 133005554 is about 510.4539774194.

Adding to 133005554 its reverse (455500331), we get a palindrome (588505885).

The spelling of 133005554 in words is "one hundred thirty-three million, five thousand, five hundred fifty-four".