1143553234 has 16 divisors (see below), whose sum is σ = 1784192256. Its totient is φ = 549104400.

The previous prime is 1143553211. The next prime is 1143553241. The reversal of 1143553234 is 4323553411.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 1143553196 and 1143553205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62277 + ... + 78520.

It is an arithmetic number, because the mean of its divisors is an integer number (111512016).

Almost surely, 2^1143553234 is an apocalyptic number.

1143553234 is a deficient number, since it is larger than the sum of its proper divisors (640639022).

1143553234 is a wasteful number, since it uses less digits than its factorization.

1143553234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140961.

The product of its digits is 21600, while the sum is 31.

The square root of 1143553234 is about 33816.4639487928. The cubic root of 1143553234 is about 1045.7281415925.

The spelling of 1143553234 in words is "one billion, one hundred forty-three million, five hundred fifty-three thousand, two hundred thirty-four".