1143390545 has 8 divisors (see below), whose sum is σ = 1496802240. Its totient is φ = 831556720.

The previous prime is 1143390541. The next prime is 1143390553. The reversal of 1143390545 is 5450933411.

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

It is not a de Polignac number, because 1143390545 - 2² = 1143390541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1143390541) 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 7 ways as a sum of consecutive naturals, for example, 10394405 + ... + 10394514.

It is an arithmetic number, because the mean of its divisors is an integer number (187100280).

Almost surely, 2^1143390545 is an apocalyptic number.

It is an amenable number.

1143390545 is a deficient number, since it is larger than the sum of its proper divisors (353411695).

1143390545 is a wasteful number, since it uses less digits than its factorization.

1143390545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20788935.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 1143390545 is about 33814.0583929229. The cubic root of 1143390545 is about 1045.6785486428.

The spelling of 1143390545 in words is "one billion, one hundred forty-three million, three hundred ninety thousand, five hundred forty-five".