1194877489 has 9 divisors (see below), whose sum is σ = 1294348203. Its totient is φ = 1102549032.

The previous prime is 1194877477. The next prime is 1194877513. The reversal of 1194877489 is 9847784911.

The square root of 1194877489 is 34567.

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., 176757025 + 1018120464 = 13295^2 + 31908^2 .

It is not a de Polignac number, because 1194877489 - 2⁵ = 1194877457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1194877429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 448042 + ... + 450700.

It is an arithmetic number, because the mean of its divisors is an integer number (143816467).

Almost surely, 2^1194877489 is an apocalyptic number.

1194877489 is the 34567-th square number.

1194877489 is the 17284-th centered octagonal number.

It is an amenable number.

1194877489 is a deficient number, since it is larger than the sum of its proper divisors (99470714).

1194877489 is an frugal number, since it uses more digits than its factorization.

1194877489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5344 (or 2672 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 58.

The cubic root of 1194877489 is about 1061.1443346641.

The spelling of 1194877489 in words is "one billion, one hundred ninety-four million, eight hundred seventy-seven thousand, four hundred eighty-nine".