243241045154 has 4 divisors (see below), whose sum is σ = 364861567734. Its totient is φ = 121620522576.

The previous prime is 243241045147. The next prime is 243241045169. The reversal of 243241045154 is 451540142342.

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., 217134564529 + 26106480625 = 465977^2 + 161575^2 .

It is a super-2 number, since 2×243241045154² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60810261287 + ... + 60810261290.

Almost surely, 2^243241045154 is an apocalyptic number.

243241045154 is a deficient number, since it is larger than the sum of its proper divisors (121620522580).

243241045154 is a wasteful number, since it uses less digits than its factorization.

243241045154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121620522579.

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 243241045154 its reverse (451540142342), we get a palindrome (694781187496).

The spelling of 243241045154 in words is "two hundred forty-three billion, two hundred forty-one million, forty-five thousand, one hundred fifty-four".