1151011056 has 40 divisors (see below), whose sum is σ = 3202173520. Its totient is φ = 354157056.

The previous prime is 1151011019. The next prime is 1151011063. The reversal of 1151011056 is 6501101511.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 921661 + ... + 922908.

It is an arithmetic number, because the mean of its divisors is an integer number (80054338).

Almost surely, 2^1151011056 is an apocalyptic number.

1151011056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1151011056 is an abundant number, since it is smaller than the sum of its proper divisors (2051162464).

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

1151011056 is a wasteful number, since it uses less digits than its factorization.

1151011056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844593 (or 1844587 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 21.

The square root of 1151011056 is about 33926.5538479817. The cubic root of 1151011056 is about 1047.9964988326.

Adding to 1151011056 its reverse (6501101511), we get a palindrome (7652112567).

The spelling of 1151011056 in words is "one billion, one hundred fifty-one million, eleven thousand, fifty-six".