133416555 has 16 divisors (see below), whose sum is σ = 213698304. Its totient is φ = 71078240.

The previous prime is 133416511. The next prime is 133416571. The reversal of 133416555 is 555614331.

It is not a de Polignac number, because 133416555 - 2¹⁴ = 133400171 is a prime.

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, 11152 + ... + 19778.

It is an arithmetic number, because the mean of its divisors is an integer number (13356144).

Almost surely, 2^133416555 is an apocalyptic number.

133416555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

133416555 is a deficient number, since it is larger than the sum of its proper divisors (80281749).

133416555 is a wasteful number, since it uses less digits than its factorization.

133416555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9666.

The product of its digits is 27000, while the sum is 33.

The square root of 133416555 is about 11550.6084255333. The cubic root of 133416555 is about 510.9792220697.

The spelling of 133416555 in words is "one hundred thirty-three million, four hundred sixteen thousand, five hundred fifty-five".