243951146 has 8 divisors (see below), whose sum is σ = 385186080. Its totient is φ = 115555788.

The previous prime is 243951143. The next prime is 243951151. The reversal of 243951146 is 641159342.

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

It is not an unprimeable number, because it can be changed into a prime (243951143) 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 3 ways as a sum of consecutive naturals, for example, 3209846 + ... + 3209921.

It is an arithmetic number, because the mean of its divisors is an integer number (48148260).

Almost surely, 2^243951146 is an apocalyptic number.

243951146 is a deficient number, since it is larger than the sum of its proper divisors (141234934).

243951146 is a wasteful number, since it uses less digits than its factorization.

243951146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6419788.

The product of its digits is 25920, while the sum is 35.

The square root of 243951146 is about 15618.9354950970. The cubic root of 243951146 is about 624.8382694061.

The spelling of 243951146 in words is "two hundred forty-three million, nine hundred fifty-one thousand, one hundred forty-six".