1182532278249 has 135 divisors (see below), whose sum is σ = 2111263768053. Its totient is φ = 657685526400.

The previous prime is 1182532278247. The next prime is 1182532278281. The reversal of 1182532278249 is 9428722352811.

It is a happy number.

The square root of 1182532278249 is 1087443.

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

1182532278249 is a `hidden beast` number, since 1 + 1 + 8 + 2 + 5 + 322 + 78 + 249 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1085674389849 + 96857888400 = 1041957^2 + 311220^2 .

It is not a de Polignac number, because 1182532278249 - 2¹ = 1182532278247 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1182532278195 and 1182532278204.

It is not an unprimeable number, because it can be changed into a prime (1182532278247) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 2808865059 + ... + 2808865479.

Almost surely, 2^{1182532278249} is an apocalyptic number.

1182532278249 is the 1087443-rd square number.

1182532278249 is the 543722-nd centered octagonal number.

It is an amenable number.

1182532278249 is a deficient number, since it is larger than the sum of its proper divisors (928731489804).

1182532278249 is an frugal number, since it uses more digits than its factorization.

1182532278249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950 (or 472 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The spelling of 1182532278249 in words is "one trillion, one hundred eighty-two billion, five hundred thirty-two million, two hundred seventy-eight thousand, two hundred forty-nine".