243452001 has 16 divisors (see below), whose sum is σ = 351602496. Its totient is φ = 148946496.

The previous prime is 243451981. The next prime is 243452003. The reversal of 243452001 is 100254342.

It is not a de Polignac number, because 243452001 - 2⁹ = 243451489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243452003) 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 15 ways as a sum of consecutive naturals, for example, 11295 + ... + 24788.

It is an arithmetic number, because the mean of its divisors is an integer number (21975156).

Almost surely, 2^243452001 is an apocalyptic number.

It is an amenable number.

243452001 is a deficient number, since it is larger than the sum of its proper divisors (108150495).

243452001 is a wasteful number, since it uses less digits than its factorization.

243452001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36272.

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

The square root of 243452001 is about 15602.9484713627. The cubic root of 243452001 is about 624.4118208327.

The spelling of 243452001 in words is "two hundred forty-three million, four hundred fifty-two thousand, one".