241018409 has 4 divisors (see below), whose sum is σ = 241160016. Its totient is φ = 240876804.

The previous prime is 241018387. The next prime is 241018411. The reversal of 241018409 is 904810142.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 241018409 - 2⁸ = 241018153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (241018489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68219 + ... + 71664.

It is an arithmetic number, because the mean of its divisors is an integer number (60290004).

Almost surely, 2^241018409 is an apocalyptic number.

It is an amenable number.

241018409 is a deficient number, since it is larger than the sum of its proper divisors (141607).

241018409 is a wasteful number, since it uses less digits than its factorization.

241018409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141606.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 241018409 is about 15524.7675989047. The cubic root of 241018409 is about 622.3242701119.

The spelling of 241018409 in words is "two hundred forty-one million, eighteen thousand, four hundred nine".