1144557043 has 16 divisors (see below), whose sum is σ = 1337356800. Its totient is φ = 979141128.

The previous prime is 1144557031. The next prime is 1144557077. The reversal of 1144557043 is 3407554411.

It is not a de Polignac number, because 1144557043 - 2⁹ = 1144556531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144557023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190146 + ... + 196072.

It is an arithmetic number, because the mean of its divisors is an integer number (83584800).

Almost surely, 2^1144557043 is an apocalyptic number.

1144557043 is a deficient number, since it is larger than the sum of its proper divisors (192799757).

1144557043 is an frugal number, since it uses more digits than its factorization.

1144557043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6511 (or 6497 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 1144557043 is about 33831.3027091775. The cubic root of 1144557043 is about 1046.0340315426.

The spelling of 1144557043 in words is "one billion, one hundred forty-four million, five hundred fifty-seven thousand, forty-three".