215304544141 has 12 divisors (see below), whose sum is σ = 218409143040. Its totient is φ = 212243482080.

The previous prime is 215304544139. The next prime is 215304544163. The reversal of 215304544141 is 141445403512.

It is a happy number.

It is not a de Polignac number, because 215304544141 - 2¹ = 215304544139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 215304544097 and 215304544106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215304544171) 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, 11239950 + ... + 11259088.

It is an arithmetic number, because the mean of its divisors is an integer number (18200761920).

Almost surely, 2^215304544141 is an apocalyptic number.

It is an amenable number.

215304544141 is a deficient number, since it is larger than the sum of its proper divisors (3104598899).

215304544141 is an equidigital number, since it uses as much as digits as its factorization.

215304544141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21396 (or 21323 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 215304544141 its reverse (141445403512), we get a palindrome (356749947653).

The spelling of 215304544141 in words is "two hundred fifteen billion, three hundred four million, five hundred forty-four thousand, one hundred forty-one".