243141394 has 8 divisors (see below), whose sum is σ = 377288460. Its totient is φ = 117378576.

The previous prime is 243141383. The next prime is 243141407. The reversal of 243141394 is 493141342.

243141394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 239847169 + 3294225 = 15487^2 + 1815^2 .

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

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, 2095989 + ... + 2096104.

Almost surely, 2^243141394 is an apocalyptic number.

243141394 is a deficient number, since it is larger than the sum of its proper divisors (134147066).

243141394 is a wasteful number, since it uses less digits than its factorization.

243141394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4192124.

The product of its digits is 10368, while the sum is 31.

The square root of 243141394 is about 15592.9918232519. The cubic root of 243141394 is about 624.1461569344.

The spelling of 243141394 in words is "two hundred forty-three million, one hundred forty-one thousand, three hundred ninety-four".