216570133 has 8 divisors (see below), whose sum is σ = 233380448. Its totient is φ = 199781424.

The previous prime is 216570103. The next prime is 216570143. The reversal of 216570133 is 331075612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 216570133 - 2¹³ = 216561941 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 (216570103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19810 + ... + 28732.

It is an arithmetic number, because the mean of its divisors is an integer number (29172556).

Almost surely, 2^216570133 is an apocalyptic number.

It is an amenable number.

216570133 is a deficient number, since it is larger than the sum of its proper divisors (16810315).

216570133 is a wasteful number, since it uses less digits than its factorization.

216570133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10803.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 216570133 is about 14716.3219929438. The cubic root of 216570133 is about 600.5274371402.

The spelling of 216570133 in words is "two hundred sixteen million, five hundred seventy thousand, one hundred thirty-three".