10243040545 has 4 divisors (see below), whose sum is σ = 12291648660. Its totient is φ = 8194432432.

The previous prime is 10243040513. The next prime is 10243040569. The reversal of 10243040545 is 54504034201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54504034201 = 19 ⋅2868633379.

It can be written as a sum of positive squares in 2 ways, for example, as 4493154961 + 5749885584 = 67031^2 + 75828^2 .

It is a cyclic number.

It is not a de Polignac number, because 10243040545 - 2⁵ = 10243040513 is a prime.

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, 1024304050 + ... + 1024304059.

It is an arithmetic number, because the mean of its divisors is an integer number (3072912165).

Almost surely, 2^10243040545 is an apocalyptic number.

It is an amenable number.

10243040545 is a deficient number, since it is larger than the sum of its proper divisors (2048608115).

10243040545 is an equidigital number, since it uses as much as digits as its factorization.

10243040545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2048608114.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 10243040545 its reverse (54504034201), we get a palindrome (64747074746).

The spelling of 10243040545 in words is "ten billion, two hundred forty-three million, forty thousand, five hundred forty-five".