243402105 has 8 divisors (see below), whose sum is σ = 389443392. Its totient is φ = 129814448.

The previous prime is 243402101. The next prime is 243402121. The reversal of 243402105 is 501204342.

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

It is a cyclic number.

It is not a de Polignac number, because 243402105 - 2² = 243402101 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (243402101) 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, 8113389 + ... + 8113418.

It is an arithmetic number, because the mean of its divisors is an integer number (48680424).

Almost surely, 2^243402105 is an apocalyptic number.

It is an amenable number.

243402105 is a deficient number, since it is larger than the sum of its proper divisors (146041287).

243402105 is a wasteful number, since it uses less digits than its factorization.

243402105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16226815.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 243402105 is about 15601.3494608640. The cubic root of 243402105 is about 624.3691597458.

Adding to 243402105 its reverse (501204342), we get a palindrome (744606447).

The spelling of 243402105 in words is "two hundred forty-three million, four hundred two thousand, one hundred five".