1145431318 has 8 divisors (see below), whose sum is σ = 1728688248. Its totient is φ = 569201904.

The previous prime is 1145431229. The next prime is 1145431319. The reversal of 1145431318 is 8131345411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1145431318.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145431319) 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 3 ways as a sum of consecutive naturals, for example, 1756471 + ... + 1757122.

It is an arithmetic number, because the mean of its divisors is an integer number (216086031).

Almost surely, 2^1145431318 is an apocalyptic number.

1145431318 is a deficient number, since it is larger than the sum of its proper divisors (583256930).

1145431318 is a wasteful number, since it uses less digits than its factorization.

1145431318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3513758.

The product of its digits is 5760, while the sum is 31.

The square root of 1145431318 is about 33844.2213383614. The cubic root of 1145431318 is about 1046.3003030093.

Adding to 1145431318 its reverse (8131345411), we get a palindrome (9276776729).

The spelling of 1145431318 in words is "one billion, one hundred forty-five million, four hundred thirty-one thousand, three hundred eighteen".