1004545243 has 4 divisors (see below), whose sum is σ = 1081817968. Its totient is φ = 927272520.

The previous prime is 1004545229. The next prime is 1004545259. The reversal of 1004545243 is 3425454001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3425454001 = 71 ⋅48245831.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1004545243 is a prime.

It is a super-2 number, since 2×1004545243² = 2018222290467858098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1004546243) 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, 38636343 + ... + 38636368.

It is an arithmetic number, because the mean of its divisors is an integer number (270454492).

Almost surely, 2^1004545243 is an apocalyptic number.

1004545243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1004545243 is a deficient number, since it is larger than the sum of its proper divisors (77272725).

1004545243 is an equidigital number, since it uses as much as digits as its factorization.

1004545243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77272724.

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

The square root of 1004545243 is about 31694.5617259491. The cubic root of 1004545243 is about 1001.5127913084.

Adding to 1004545243 its reverse (3425454001), we get a palindrome (4429999244).

The spelling of 1004545243 in words is "one billion, four million, five hundred forty-five thousand, two hundred forty-three".