1145431324 has 6 divisors (see below), whose sum is σ = 2004504824. Its totient is φ = 572715660.

The previous prime is 1145431319. The next prime is 1145431327. The reversal of 1145431324 is 4231345411.

It is a junction number, because it is equal to n+sod(n) for n = 1145431292 and 1145431301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145431327) 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 as a sum of consecutive naturals, namely, 143178912 + ... + 143178919.

Almost surely, 2^1145431324 is an apocalyptic number.

It is an amenable number.

1145431324 is a deficient number, since it is larger than the sum of its proper divisors (859073500).

1145431324 is a wasteful number, since it uses less digits than its factorization.

1145431324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286357835 (or 286357833 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 1145431324 is about 33844.2214270029. The cubic root of 1145431324 is about 1046.3003048363.

Adding to 1145431324 its reverse (4231345411), we get a palindrome (5376776735).

It can be divided in two parts, 11454 and 31324, that added together give a triangular number (42778 = T₂₉₂).

The spelling of 1145431324 in words is "one billion, one hundred forty-five million, four hundred thirty-one thousand, three hundred twenty-four".