1143542355 has 16 divisors (see below), whose sum is σ = 1892760480. Its totient is φ = 588858368.

The previous prime is 1143542347. The next prime is 1143542423. The reversal of 1143542355 is 5532453411.

It is a cyclic number.

It is not a de Polignac number, because 1143542355 - 2³ = 1143542347 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1313982 + ... + 1314851.

It is an arithmetic number, because the mean of its divisors is an integer number (118297530).

Almost surely, 2^1143542355 is an apocalyptic number.

1143542355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1143542355 is a deficient number, since it is larger than the sum of its proper divisors (749218125).

1143542355 is a wasteful number, since it uses less digits than its factorization.

1143542355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2628870.

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

The square root of 1143542355 is about 33816.3030948092. The cubic root of 1143542355 is about 1045.7248254628.

Adding to 1143542355 its reverse (5532453411), we get a palindrome (6675995766).

The spelling of 1143542355 in words is "one billion, one hundred forty-three million, five hundred forty-two thousand, three hundred fifty-five".