1143254535 has 16 divisors (see below), whose sum is σ = 1831482240. Its totient is φ = 608977440.

The previous prime is 1143254531. The next prime is 1143254551. The reversal of 1143254535 is 5354523411.

It is not a de Polignac number, because 1143254535 - 2² = 1143254531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1143254496 and 1143254505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143254531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34825 + ... + 59154.

It is an arithmetic number, because the mean of its divisors is an integer number (114467640).

Almost surely, 2^1143254535 is an apocalyptic number.

1143254535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1143254535 is a deficient number, since it is larger than the sum of its proper divisors (688227705).

1143254535 is an equidigital number, since it uses as much as digits as its factorization.

1143254535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94798.

The product of its digits is 36000, while the sum is 33.

The square root of 1143254535 is about 33812.0471873562. The cubic root of 1143254535 is about 1045.6370847179.

Adding to 1143254535 its reverse (5354523411), we get a palindrome (6497777946).

The spelling of 1143254535 in words is "one billion, one hundred forty-three million, two hundred fifty-four thousand, five hundred thirty-five".