216451341 has 12 divisors (see below), whose sum is σ = 320278140. Its totient is φ = 140781120.

The previous prime is 216451297. The next prime is 216451343. The reversal of 216451341 is 143154612.

It is a happy number.

216451341 is a `hidden beast` number, since 2 + 1 + 645 + 13 + 4 + 1 = 666.

216451341 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3437316 + 213014025 = 1854^2 + 14595^2 .

It is not a de Polignac number, because 216451341 - 2¹⁰ = 216450317 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216451343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 292926 + ... + 293663.

It is an arithmetic number, because the mean of its divisors is an integer number (26689845).

Almost surely, 2^216451341 is an apocalyptic number.

It is an amenable number.

216451341 is a deficient number, since it is larger than the sum of its proper divisors (103826799).

216451341 is a wasteful number, since it uses less digits than its factorization.

216451341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586636 (or 586633 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 216451341 is about 14712.2853765144. The cubic root of 216451341 is about 600.4176175918.

The spelling of 216451341 in words is "two hundred sixteen million, four hundred fifty-one thousand, three hundred forty-one".