1146973689 has 45 divisors (see below), whose sum is σ = 1771260799. Its totient is φ = 739655280.

The previous prime is 1146973649. The next prime is 1146973691. The reversal of 1146973689 is 9863796411.

The square root of 1146973689 is 33867.

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

It can be written as a sum of positive squares in only one way, i.e., 826850025 + 320123664 = 28755^2 + 17892^2 .

It is not a de Polignac number, because 1146973689 - 2¹⁷ = 1146842617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1146973649) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 16154524 + ... + 16154594.

Almost surely, 2^1146973689 is an apocalyptic number.

1146973689 is the 33867-th square number.

1146973689 is the 16934-th centered octagonal number.

It is an amenable number.

1146973689 is a deficient number, since it is larger than the sum of its proper divisors (624287110).

1146973689 is an frugal number, since it uses more digits than its factorization.

1146973689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 127 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The cubic root of 1146973689 is about 1046.7697213611.

It can be divided in two parts, 11469 and 73689, that added together give a palindrome (85158).

The spelling of 1146973689 in words is "one billion, one hundred forty-six million, nine hundred seventy-three thousand, six hundred eighty-nine".