1151130778 has 16 divisors (see below), whose sum is σ = 1976569920. Its totient is φ = 492541056.

The previous prime is 1151130763. The next prime is 1151130779. The reversal of 1151130778 is 8770311511.

It is not an unprimeable number, because it can be changed into a prime (1151130779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57751 + ... + 75082.

It is an arithmetic number, because the mean of its divisors is an integer number (123535620).

Almost surely, 2^1151130778 is an apocalyptic number.

1151130778 is a deficient number, since it is larger than the sum of its proper divisors (825439142).

1151130778 is a wasteful number, since it uses less digits than its factorization.

1151130778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133461.

The product of its (nonzero) digits is 5880, while the sum is 34.

The square root of 1151130778 is about 33928.3182312357. The cubic root of 1151130778 is about 1048.0328332322.

The spelling of 1151130778 in words is "one billion, one hundred fifty-one million, one hundred thirty thousand, seven hundred seventy-eight".