1143042435 has 40 divisors (see below), whose sum is σ = 2054638080. Its totient is φ = 607948416.

The previous prime is 1143042409. The next prime is 1143042437. The reversal of 1143042435 is 5342403411.

It is a happy number.

1143042435 is a `hidden beast` number, since 114 + 304 + 243 + 5 = 666.

It is not a de Polignac number, because 1143042435 - 2⁹ = 1143041923 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1143042399 and 1143042408.

It is not an unprimeable number, because it can be changed into a prime (1143042437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 151431 + ... + 158799.

It is an arithmetic number, because the mean of its divisors is an integer number (51365952).

Almost surely, 2^1143042435 is an apocalyptic number.

1143042435 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1143042435 is a deficient number, since it is larger than the sum of its proper divisors (911595645).

1143042435 is an equidigital number, since it uses as much as digits as its factorization.

1143042435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7769 (or 7760 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 1143042435 is about 33808.9105858204. The cubic root of 1143042435 is about 1045.5724174791.

Adding to 1143042435 its reverse (5342403411), we get a palindrome (6485445846).

The spelling of 1143042435 in words is "one billion, one hundred forty-three million, forty-two thousand, four hundred thirty-five".