1151568 has 60 divisors (see below), whose sum is σ = 3520608. Its totient is φ = 348480.

The previous prime is 1151537. The next prime is 1151569. The reversal of 1151568 is 8651511.

It is a super-2 number, since 2×1151568² = 2652217717248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1221 + ... + 1947.

2^1151568 is an apocalyptic number.

1151568 is a gapful number since it is divisible by the number (18) 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 1151568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1760304).

1151568 is an abundant number, since it is smaller than the sum of its proper divisors (2369040).

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

1151568 is a wasteful number, since it uses less digits than its factorization.

1151568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752 (or 743 counting only the distinct ones).

The product of its digits is 1200, while the sum is 27.

The square root of 1151568 is about 1073.1113642116. Note that the first 3 decimals coincide. The cubic root of 1151568 is about 104.8165504231.

The spelling of 1151568 in words is "one million, one hundred fifty-one thousand, five hundred sixty-eight".