1144555345 has 16 divisors (see below), whose sum is σ = 1530800640. Its totient is φ = 816424704.

The previous prime is 1144555339. The next prime is 1144555409. The reversal of 1144555345 is 5435554411.

It is a cyclic number.

It is not a de Polignac number, because 1144555345 - 2⁹ = 1144554833 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 352737 + ... + 355966.

It is an arithmetic number, because the mean of its divisors is an integer number (95675040).

Almost surely, 2^1144555345 is an apocalyptic number.

It is an amenable number.

1144555345 is a deficient number, since it is larger than the sum of its proper divisors (386245295).

1144555345 is a wasteful number, since it uses less digits than its factorization.

1144555345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708744.

The product of its digits is 120000, while the sum is 37.

The square root of 1144555345 is about 33831.2776140660. The cubic root of 1144555345 is about 1046.0335142634.

It can be divided in two parts, 1144555 and 345, that added together give a square (1144900 = 1070²).

The spelling of 1144555345 in words is "one billion, one hundred forty-four million, five hundred fifty-five thousand, three hundred forty-five".