217054001 has 8 divisors (see below), whose sum is σ = 222278400. Its totient is φ = 211891680.

The previous prime is 217053997. The next prime is 217054093. The reversal of 217054001 is 100450712.

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 217054001 - 2² = 217053997 is a prime.

It is a super-2 number, since 2×217054001² = 94224878700216002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (217054301) 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 7 ways as a sum of consecutive naturals, for example, 8405 + ... + 22466.

It is an arithmetic number, because the mean of its divisors is an integer number (27784800).

Almost surely, 2^217054001 is an apocalyptic number.

It is an amenable number.

217054001 is a deficient number, since it is larger than the sum of its proper divisors (5224399).

217054001 is an equidigital number, since it uses as much as digits as its factorization.

217054001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31039.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 217054001 is about 14732.7526620113. The cubic root of 217054001 is about 600.9743437525.

The spelling of 217054001 in words is "two hundred seventeen million, fifty-four thousand, one".