243002105 has 4 divisors (see below), whose sum is σ = 291602532. Its totient is φ = 194401680.

The previous prime is 243002083. The next prime is 243002113. The reversal of 243002105 is 501200342.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 501200342 = 2 ⋅250600171.

It can be written as a sum of positive squares in 2 ways, for example, as 24760576 + 218241529 = 4976^2 + 14773^2 .

It is not a de Polignac number, because 243002105 - 2¹² = 242998009 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24300206 + ... + 24300215.

It is an arithmetic number, because the mean of its divisors is an integer number (72900633).

Almost surely, 2^243002105 is an apocalyptic number.

It is an amenable number.

243002105 is a deficient number, since it is larger than the sum of its proper divisors (48600427).

243002105 is an equidigital number, since it uses as much as digits as its factorization.

243002105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48600426.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 243002105 is about 15588.5247858802. The cubic root of 243002105 is about 624.0269487937.

Adding to 243002105 its reverse (501200342), we get a palindrome (744202447).

The spelling of 243002105 in words is "two hundred forty-three million, two thousand, one hundred five".