1143550545 has 16 divisors (see below), whose sum is σ = 1844090880. Its totient is φ = 605090304.

The previous prime is 1143550531. The next prime is 1143550553. The reversal of 1143550545 is 5450553411.

It is not a de Polignac number, because 1143550545 - 2⁶ = 1143550481 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, 298240 + ... + 302049.

It is an arithmetic number, because the mean of its divisors is an integer number (115255680).

Almost surely, 2^1143550545 is an apocalyptic number.

1143550545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1143550545 is a deficient number, since it is larger than the sum of its proper divisors (700540335).

1143550545 is a wasteful number, since it uses less digits than its factorization.

1143550545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600424.

The product of its (nonzero) digits is 30000, while the sum is 33.

The square root of 1143550545 is about 33816.4241900293. The cubic root of 1143550545 is about 1045.7273219353.

The spelling of 1143550545 in words is "one billion, one hundred forty-three million, five hundred fifty thousand, five hundred forty-five".