216040130 has 8 divisors (see below), whose sum is σ = 388872252. Its totient is φ = 86416048.

The previous prime is 216040129. The next prime is 216040133. The reversal of 216040130 is 31040612.

216040130 is digitally balanced in base 3, 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 215531761 + 508369 = 14681^2 + 713^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 216040099 and 216040108.

It is not an unprimeable number, because it can be changed into a prime (216040133) 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, 10801997 + ... + 10802016.

Almost surely, 2^216040130 is an apocalyptic number.

216040130 is a deficient number, since it is larger than the sum of its proper divisors (172832122).

216040130 is a wasteful number, since it uses less digits than its factorization.

216040130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21604020.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 216040130 is about 14698.3036436182. The cubic root of 216040130 is about 600.0371551065.

Adding to 216040130 its reverse (31040612), we get a palindrome (247080742).

The spelling of 216040130 in words is "two hundred sixteen million, forty thousand, one hundred thirty".