216251201 has 8 divisors (see below), whose sum is σ = 218759808. Its totient is φ = 213750000.

The previous prime is 216251159. The next prime is 216251207. The reversal of 216251201 is 102152612.

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 216251201 - 2¹⁸ = 215989057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216251207) 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, 74426 + ... + 77276.

It is an arithmetic number, because the mean of its divisors is an integer number (27344976).

Almost surely, 2^216251201 is an apocalyptic number.

It is an amenable number.

216251201 is a deficient number, since it is larger than the sum of its proper divisors (2508607).

216251201 is a wasteful number, since it uses less digits than its factorization.

216251201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3703.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 216251201 is about 14705.4820050211. The cubic root of 216251201 is about 600.2325034105.

The spelling of 216251201 in words is "two hundred sixteen million, two hundred fifty-one thousand, two hundred one".