1151612280 has 192 divisors, whose sum is σ = 4606580160. Its totient is φ = 242970624.

The previous prime is 1151612263. The next prime is 1151612291. The reversal of 1151612280 is 822161511.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 15184 + ... + 50336.

It is an arithmetic number, because the mean of its divisors is an integer number (23992605).

Almost surely, 2^1151612280 is an apocalyptic number.

1151612280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1151612280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2303290080).

1151612280 is an abundant number, since it is smaller than the sum of its proper divisors (3454967880).

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

1151612280 is a wasteful number, since it uses less digits than its factorization.

1151612280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35190 (or 35183 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The square root of 1151612280 is about 33935.4133612661. The cubic root of 1151612280 is about 1048.1789387171.

Adding to 1151612280 its reverse (822161511), we get a palindrome (1973773791).

The spelling of 1151612280 in words is "one billion, one hundred fifty-one million, six hundred twelve thousand, two hundred eighty".