215144452234 has 16 divisors (see below), whose sum is σ = 323346608640. Its totient is φ = 107362404160.

The previous prime is 215144452223. The next prime is 215144452261. The reversal of 215144452234 is 432254441512.

It is a junction number, because it is equal to n+sod(n) for n = 215144452193 and 215144452202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2846322 + ... + 2920930.

It is an arithmetic number, because the mean of its divisors is an integer number (20209163040).

Almost surely, 2^215144452234 is an apocalyptic number.

215144452234 is a deficient number, since it is larger than the sum of its proper divisors (108202156406).

215144452234 is a wasteful number, since it uses less digits than its factorization.

215144452234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77405.

The product of its digits is 153600, while the sum is 37.

Adding to 215144452234 its reverse (432254441512), we get a palindrome (647398893746).

The spelling of 215144452234 in words is "two hundred fifteen billion, one hundred forty-four million, four hundred fifty-two thousand, two hundred thirty-four".