243453451 has 8 divisors (see below), whose sum is σ = 250231520. Its totient is φ = 236685888.

The previous prime is 243453421. The next prime is 243453461. The reversal of 243453451 is 154354342.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243453451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243453421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77530 + ... + 80608.

It is an arithmetic number, because the mean of its divisors is an integer number (31278940).

Almost surely, 2^243453451 is an apocalyptic number.

243453451 is a deficient number, since it is larger than the sum of its proper divisors (6778069).

243453451 is a wasteful number, since it uses less digits than its factorization.

243453451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5253.

The product of its digits is 28800, while the sum is 31.

The square root of 243453451 is about 15602.9949368703. The cubic root of 243453451 is about 624.4130604958.

The spelling of 243453451 in words is "two hundred forty-three million, four hundred fifty-three thousand, four hundred fifty-one".