243415117 has 8 divisors (see below), whose sum is σ = 266182560. Its totient is φ = 220754160.

The previous prime is 243415111. The next prime is 243415121. The reversal of 243415117 is 711514342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 243415117 - 2⁷ = 243414989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243415111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21798 + ... + 31015.

It is an arithmetic number, because the mean of its divisors is an integer number (33272820).

Almost surely, 2^243415117 is an apocalyptic number.

It is an amenable number.

243415117 is a deficient number, since it is larger than the sum of its proper divisors (22767443).

243415117 is a wasteful number, since it uses less digits than its factorization.

243415117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53243.

The product of its digits is 3360, while the sum is 28.

The square root of 243415117 is about 15601.7664704994. The cubic root of 243415117 is about 624.3802855695.

Adding to 243415117 its reverse (711514342), we get a palindrome (954929459).

The spelling of 243415117 in words is "two hundred forty-three million, four hundred fifteen thousand, one hundred seventeen".