214505369 has 4 divisors (see below), whose sum is σ = 231005796. Its totient is φ = 198004944.

The previous prime is 214505359. The next prime is 214505407. The reversal of 214505369 is 963505412.

214505369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 62599744 + 151905625 = 7912^2 + 12325^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214505369 is a prime.

It is a super-2 number, since 2×214505369² = 92025106659652322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (214505359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8250194 + ... + 8250219.

It is an arithmetic number, because the mean of its divisors is an integer number (57751449).

Almost surely, 2^214505369 is an apocalyptic number.

It is an amenable number.

214505369 is a deficient number, since it is larger than the sum of its proper divisors (16500427).

214505369 is a wasteful number, since it uses less digits than its factorization.

214505369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16500426.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 214505369 is about 14646.0018093676. The cubic root of 214505369 is about 598.6128780331.

The spelling of 214505369 in words is "two hundred fourteen million, five hundred five thousand, three hundred sixty-nine".