1126743489 has 27 divisors (see below), whose sum is σ = 1662124737. Its totient is φ = 735520104.

The previous prime is 1126743479. The next prime is 1126743521. The reversal of 1126743489 is 9843476211.

The square root of 1126743489 is 33567.

It is a perfect power (a square), and thus also a powerful number.

1126743489 is a `hidden beast` number, since 1 + 126 + 7 + 43 + 489 = 666.

It is not a de Polignac number, because 1126743489 - 2⁹ = 1126742977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1126743439) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 6746884 + ... + 6747050.

Almost surely, 2^1126743489 is an apocalyptic number.

1126743489 is the 33567-th square number.

1126743489 is the 16784-th centered octagonal number.

It is an amenable number.

1126743489 is a deficient number, since it is larger than the sum of its proper divisors (535381248).

1126743489 is an frugal number, since it uses more digits than its factorization.

1126743489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 237 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The cubic root of 1126743489 is about 1040.5789087721.

It can be divided in two parts, 11267 and 43489, that added together give a square (54756 = 234²).

The spelling of 1126743489 in words is "one billion, one hundred twenty-six million, seven hundred forty-three thousand, four hundred eighty-nine".