1145204313 has 16 divisors (see below), whose sum is σ = 1668303552. Its totient is φ = 693000000.

The previous prime is 1145204299. The next prime is 1145204321. The reversal of 1145204313 is 3134025411.

It is a happy number.

It is not a de Polignac number, because 1145204313 - 2¹⁰ = 1145203289 is a prime.

It is a super-2 number, since 2×1145204313² = 2622985837027603938, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1145204323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4438 + ... + 48063.

It is an arithmetic number, because the mean of its divisors is an integer number (104268972).

Almost surely, 2^1145204313 is an apocalyptic number.

It is an amenable number.

1145204313 is a deficient number, since it is larger than the sum of its proper divisors (523099239).

1145204313 is a wasteful number, since it uses less digits than its factorization.

1145204313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53176.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1145204313 is about 33840.8674977460. The cubic root of 1145204313 is about 1046.2311788030.

Adding to 1145204313 its reverse (3134025411), we get a palindrome (4279229724).

The spelling of 1145204313 in words is "one billion, one hundred forty-five million, two hundred four thousand, three hundred thirteen".