1143451005 has 32 divisors (see below), whose sum is σ = 1895702400. Its totient is φ = 587849472.

The previous prime is 1143450967. The next prime is 1143451019. The reversal of 1143451005 is 5001543411.

It is a happy number.

It is not a de Polignac number, because 1143451005 - 2⁶ = 1143450941 is a prime.

It is a super-3 number, since 3×1143451005³ (a number of 28 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 319687 + ... + 323243.

It is an arithmetic number, because the mean of its divisors is an integer number (59240700).

Almost surely, 2^1143451005 is an apocalyptic number.

1143451005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1143451005 is a deficient number, since it is larger than the sum of its proper divisors (752251395).

1143451005 is a wasteful number, since it uses less digits than its factorization.

1143451005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4333.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1143451005 is about 33814.9523879600. The cubic root of 1143451005 is about 1045.6969793855.

Adding to 1143451005 its reverse (5001543411), we get a palindrome (6144994416).

The spelling of 1143451005 in words is "one billion, one hundred forty-three million, four hundred fifty-one thousand, five".