215134245441 has 24 divisors (see below), whose sum is σ = 318204286400. Its totient is φ = 139986929376.

The previous prime is 215134245419. The next prime is 215134245467. The reversal of 215134245441 is 144542431512.

215134245441 is a `hidden beast` number, since 21 + 51 + 3 + 42 + 4 + 544 + 1 = 666.

It is not a de Polignac number, because 215134245441 - 2²⁹ = 214597374529 is a prime.

It is a super-2 number, since 2×215134245441² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 215134245396 and 215134245405.

It is not an unprimeable number, because it can be changed into a prime (215134245041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 342735 + ... + 740091.

Almost surely, 2^215134245441 is an apocalyptic number.

It is an amenable number.

215134245441 is a deficient number, since it is larger than the sum of its proper divisors (103070040959).

215134245441 is a wasteful number, since it uses less digits than its factorization.

215134245441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398805 (or 398802 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

Adding to 215134245441 its reverse (144542431512), we get a palindrome (359676676953).

The spelling of 215134245441 in words is "two hundred fifteen billion, one hundred thirty-four million, two hundred forty-five thousand, four hundred forty-one".