133450555 has 16 divisors (see below), whose sum is σ = 186473664. Its totient is φ = 89781120.

The previous prime is 133450549. The next prime is 133450573. The reversal of 133450555 is 555054331.

It is not a de Polignac number, because 133450555 - 2⁵ = 133450523 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34116 + ... + 37825.

It is an arithmetic number, because the mean of its divisors is an integer number (11654604).

Almost surely, 2^133450555 is an apocalyptic number.

133450555 is a deficient number, since it is larger than the sum of its proper divisors (53023109).

133450555 is an equidigital number, since it uses as much as digits as its factorization.

133450555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72006.

The product of its (nonzero) digits is 22500, while the sum is 31.

The square root of 133450555 is about 11552.0801157194. The cubic root of 133450555 is about 511.0226245244.

The spelling of 133450555 in words is "one hundred thirty-three million, four hundred fifty thousand, five hundred fifty-five".