243274601 has 4 divisors (see below), whose sum is σ = 244318932. Its totient is φ = 242230272.

The previous prime is 243274597. The next prime is 243274621. The reversal of 243274601 is 106472342.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14055001 + 229219600 = 3749^2 + 15140^2 .

It is a cyclic number.

It is not a de Polignac number, because 243274601 - 2² = 243274597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243274621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 521816 + ... + 522281.

It is an arithmetic number, because the mean of its divisors is an integer number (61079733).

Almost surely, 2^243274601 is an apocalyptic number.

It is an amenable number.

243274601 is a deficient number, since it is larger than the sum of its proper divisors (1044331).

243274601 is a wasteful number, since it uses less digits than its factorization.

243274601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044330.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 243274601 is about 15597.2626123945. The cubic root of 243274601 is about 624.2601173167.

The spelling of 243274601 in words is "two hundred forty-three million, two hundred seventy-four thousand, six hundred one".