1181266048 has 32 divisors (see below), whose sum is σ = 2434459500. Its totient is φ = 570264576.

The previous prime is 1181266007. The next prime is 1181266091. The reversal of 1181266048 is 8406621811.

It can be written as a sum of positive squares in 2 ways, for example, as 1172925504 + 8340544 = 34248^2 + 2888^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 1181265998 and 1181266016.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155403 + ... + 162826.

Almost surely, 2^1181266048 is an apocalyptic number.

It is an amenable number.

1181266048 is an abundant number, since it is smaller than the sum of its proper divisors (1253193452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1181266048 is an equidigital number, since it uses as much as digits as its factorization.

1181266048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318272 (or 318260 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 1181266048 is about 34369.5511754227. The cubic root of 1181266048 is about 1057.0995968801.

Adding to 1181266048 its reverse (8406621811), we get a palindrome (9587887859).

The spelling of 1181266048 in words is "one billion, one hundred eighty-one million, two hundred sixty-six thousand, forty-eight".