241859909 has 2 divisors, whose sum is σ = 241859910. Its totient is φ = 241859908.

The previous prime is 241859899. The next prime is 241859957. The reversal of 241859909 is 909958142.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210163009 + 31696900 = 14497^2 + 5630^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-241859909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (241859999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120929954 + 120929955.

It is an arithmetic number, because the mean of its divisors is an integer number (120929955).

Almost surely, 2^241859909 is an apocalyptic number.

It is an amenable number.

241859909 is a deficient number, since it is larger than the sum of its proper divisors (1).

241859909 is an equidigital number, since it uses as much as digits as its factorization.

241859909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 47.

The square root of 241859909 is about 15551.8458389993. The cubic root of 241859909 is about 623.0476969838.

The spelling of 241859909 in words is "two hundred forty-one million, eight hundred fifty-nine thousand, nine hundred nine".