243153425413 has 4 divisors (see below), whose sum is σ = 243158335308. Its totient is φ = 243148515520.

The previous prime is 243153425371. The next prime is 243153425429. The reversal of 243153425413 is 314524351342.

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

It can be written as a sum of positive squares in 2 ways, for example, as 120147504129 + 123005921284 = 346623^2 + 350722^2 .

It is a cyclic number.

It is not a de Polignac number, because 243153425413 - 2²⁹ = 242616554501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243153425453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2379898 + ... + 2479963.

It is an arithmetic number, because the mean of its divisors is an integer number (60789583827).

Almost surely, 2^243153425413 is an apocalyptic number.

It is an amenable number.

243153425413 is a deficient number, since it is larger than the sum of its proper divisors (4909895).

243153425413 is an equidigital number, since it uses as much as digits as its factorization.

243153425413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4909894.

The product of its digits is 172800, while the sum is 37.

Adding to 243153425413 its reverse (314524351342), we get a palindrome (557677776755).

The spelling of 243153425413 in words is "two hundred forty-three billion, one hundred fifty-three million, four hundred twenty-five thousand, four hundred thirteen".