243423514 has 4 divisors (see below), whose sum is σ = 365135274. Its totient is φ = 121711756.

The previous prime is 243423503. The next prime is 243423547. The reversal of 243423514 is 415324342.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 242331489 + 1092025 = 15567^2 + 1045^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60855877 + ... + 60855880.

Almost surely, 2^243423514 is an apocalyptic number.

243423514 is a deficient number, since it is larger than the sum of its proper divisors (121711760).

243423514 is a wasteful number, since it uses less digits than its factorization.

243423514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121711759.

The product of its digits is 11520, while the sum is 28.

The square root of 243423514 is about 15602.0355723220. The cubic root of 243423514 is about 624.3874651578.

Adding to 243423514 its reverse (415324342), we get a palindrome (658747856).

The spelling of 243423514 in words is "two hundred forty-three million, four hundred twenty-three thousand, five hundred fourteen".