1143545611 has 8 divisors (see below), whose sum is σ = 1252384560. Its totient is φ = 1037688672.

The previous prime is 1143545591. The next prime is 1143545629. The reversal of 1143545611 is 1165453411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1143545611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1143545111) by changing a digit.

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, 744700 + ... + 746233.

It is an arithmetic number, because the mean of its divisors is an integer number (156548070).

Almost surely, 2^1143545611 is an apocalyptic number.

1143545611 is a deficient number, since it is larger than the sum of its proper divisors (108838949).

1143545611 is a wasteful number, since it uses less digits than its factorization.

1143545611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491005.

The product of its digits is 7200, while the sum is 31.

The square root of 1143545611 is about 33816.3512372343. The cubic root of 1143545611 is about 1045.7258179568.

The spelling of 1143545611 in words is "one billion, one hundred forty-three million, five hundred forty-five thousand, six hundred eleven".