216107369 has 4 divisors (see below), whose sum is σ = 216802560. Its totient is φ = 215412180.

The previous prime is 216107329. The next prime is 216107389. The reversal of 216107369 is 963701612.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-216107369 is a prime.

It is a super-2 number, since 2×216107369² = 93404789872204322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216107329) 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 3 ways as a sum of consecutive naturals, for example, 347129 + ... + 347750.

It is an arithmetic number, because the mean of its divisors is an integer number (54200640).

Almost surely, 2^216107369 is an apocalyptic number.

It is an amenable number.

216107369 is a deficient number, since it is larger than the sum of its proper divisors (695191).

216107369 is an equidigital number, since it uses as much as digits as its factorization.

216107369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695190.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 216107369 is about 14700.5907704418. The cubic root of 216107369 is about 600.0993992728.

The spelling of 216107369 in words is "two hundred sixteen million, one hundred seven thousand, three hundred sixty-nine".