1151180280 has 48 divisors (see below), whose sum is σ = 3741337080. Its totient is φ = 306981312.

The previous prime is 1151180267. The next prime is 1151180321. The reversal of 1151180280 is 820811511.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1598502 + ... + 1599221.

Almost surely, 2^1151180280 is an apocalyptic number.

1151180280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1151180280 is an abundant number, since it is smaller than the sum of its proper divisors (2590156800).

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

1151180280 is a wasteful number, since it uses less digits than its factorization.

1151180280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3197740 (or 3197733 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 27.

The square root of 1151180280 is about 33929.0477319951. The cubic root of 1151180280 is about 1048.0478558455.

Adding to 1151180280 its reverse (820811511), we get a palindrome (1971991791).

The spelling of 1151180280 in words is "one billion, one hundred fifty-one million, one hundred eighty thousand, two hundred eighty".