241212409 has 2 divisors, whose sum is σ = 241212410. Its totient is φ = 241212408.

The previous prime is 241212379. The next prime is 241212427. The reversal of 241212409 is 904212142.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228765625 + 12446784 = 15125^2 + 3528^2 .

It is a cyclic number.

It is not a de Polignac number, because 241212409 - 2⁷ = 241212281 is a prime.

It is not a weakly prime, because it can be changed into another prime (241212449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120606204 + 120606205.

It is an arithmetic number, because the mean of its divisors is an integer number (120606205).

Almost surely, 2^241212409 is an apocalyptic number.

It is an amenable number.

241212409 is a deficient number, since it is larger than the sum of its proper divisors (1).

241212409 is an equidigital number, since it uses as much as digits as its factorization.

241212409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 241212409 is about 15531.0144227607. The cubic root of 241212409 is about 622.4911986197.

The spelling of 241212409 in words is "two hundred forty-one million, two hundred twelve thousand, four hundred nine".