216370745 has 8 divisors (see below), whose sum is σ = 259969920. Its totient is φ = 172879920.

The previous prime is 216370741. The next prime is 216370771. The reversal of 216370745 is 547073612.

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

It is not a de Polignac number, because 216370745 - 2² = 216370741 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216370741) 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, 22625 + ... + 30734.

It is an arithmetic number, because the mean of its divisors is an integer number (32496240).

Almost surely, 2^216370745 is an apocalyptic number.

It is an amenable number.

216370745 is a deficient number, since it is larger than the sum of its proper divisors (43599175).

216370745 is an equidigital number, since it uses as much as digits as its factorization.

216370745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54175.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 216370745 is about 14709.5460500996. The cubic root of 216370745 is about 600.3430861898.

The spelling of 216370745 in words is "two hundred sixteen million, three hundred seventy thousand, seven hundred forty-five".