215041150409 has 2 divisors, whose sum is σ = 215041150410. Its totient is φ = 215041150408.

The previous prime is 215041150397. The next prime is 215041150417. The reversal of 215041150409 is 904051140512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 214806294784 + 234855625 = 463472^2 + 15325^2 .

It is a cyclic number.

It is not a de Polignac number, because 215041150409 - 2⁸ = 215041150153 is a prime.

It is not a weakly prime, because it can be changed into another prime (215041150309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107520575204 + 107520575205.

It is an arithmetic number, because the mean of its divisors is an integer number (107520575205).

Almost surely, 2^215041150409 is an apocalyptic number.

It is an amenable number.

215041150409 is a deficient number, since it is larger than the sum of its proper divisors (1).

215041150409 is an equidigital number, since it uses as much as digits as its factorization.

215041150409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 32.

The spelling of 215041150409 in words is "two hundred fifteen billion, forty-one million, one hundred fifty thousand, four hundred nine".