1143054513 has 18 divisors (see below), whose sum is σ = 1674076326. Its totient is φ = 751565952.

The previous prime is 1143054511. The next prime is 1143054527. The reversal of 1143054513 is 3154503411.

It is a happy number.

1143054513 is a `hidden beast` number, since 1 + 143 + 0 + 5 + 4 + 513 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 449100864 + 693953649 = 21192^2 + 26343^2 .

It is not a de Polignac number, because 1143054513 - 2¹ = 1143054511 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1143054511) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 36045 + ... + 59877.

Almost surely, 2^1143054513 is an apocalyptic number.

It is an amenable number.

1143054513 is a deficient number, since it is larger than the sum of its proper divisors (531021813).

1143054513 is an equidigital number, since it uses as much as digits as its factorization.

1143054513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23985 (or 23909 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1143054513 is about 33809.0892068982. The cubic root of 1143054513 is about 1045.5761001593.

Adding to 1143054513 its reverse (3154503411), we get a palindrome (4297557924).

The spelling of 1143054513 in words is "one billion, one hundred forty-three million, fifty-four thousand, five hundred thirteen".