1151220084 has 48 divisors (see below), whose sum is σ = 3089509248. Its totient is φ = 326821248.

The previous prime is 1151219987. The next prime is 1151220137. The reversal of 1151220084 is 4800221511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30459 + ... + 56834.

It is an arithmetic number, because the mean of its divisors is an integer number (64364776).

Almost surely, 2^1151220084 is an apocalyptic number.

1151220084 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1151220084 is an abundant number, since it is smaller than the sum of its proper divisors (1938289164).

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

1151220084 is a wasteful number, since it uses less digits than its factorization.

1151220084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87464 (or 87462 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 1151220084 is about 33929.6343039532. The cubic root of 1151220084 is about 1048.0599350471.

Adding to 1151220084 its reverse (4800221511), we get a palindrome (5951441595).

The spelling of 1151220084 in words is "one billion, one hundred fifty-one million, two hundred twenty thousand, eighty-four".