217152041 has 2 divisors, whose sum is σ = 217152042. Its totient is φ = 217152040.

The previous prime is 217152011. The next prime is 217152049. The reversal of 217152041 is 140251712.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210366016 + 6786025 = 14504^2 + 2605^2 .

It is a cyclic number.

It is not a de Polignac number, because 217152041 - 2²² = 212957737 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 217151998 and 217152016.

It is not a weakly prime, because it can be changed into another prime (217152049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108576020 + 108576021.

It is an arithmetic number, because the mean of its divisors is an integer number (108576021).

Almost surely, 2^217152041 is an apocalyptic number.

It is an amenable number.

217152041 is a deficient number, since it is larger than the sum of its proper divisors (1).

217152041 is an equidigital number, since it uses as much as digits as its factorization.

217152041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 217152041 is about 14736.0795668319. The cubic root of 217152041 is about 601.0648137977.

The spelling of 217152041 in words is "two hundred seventeen million, one hundred fifty-two thousand, forty-one".