1151565460 has 12 divisors (see below), whose sum is σ = 2418287508. Its totient is φ = 460626176.

The previous prime is 1151565427. The next prime is 1151565461. The reversal of 1151565460 is 645651511.

It can be written as a sum of positive squares in 2 ways, for example, as 918453636 + 233111824 = 30306^2 + 15268^2 .

It is a super-2 number, since 2×1151565460² = 2652206017330023200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151565461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28789117 + ... + 28789156.

It is an arithmetic number, because the mean of its divisors is an integer number (201523959).

Almost surely, 2^1151565460 is an apocalyptic number.

1151565460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1151565460 is an abundant number, since it is smaller than the sum of its proper divisors (1266722048).

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

1151565460 is a wasteful number, since it uses less digits than its factorization.

1151565460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57578282 (or 57578280 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 34.

The square root of 1151565460 is about 33934.7235144181. The cubic root of 1151565460 is about 1048.1647335881.

The spelling of 1151565460 in words is "one billion, one hundred fifty-one million, five hundred sixty-five thousand, four hundred sixty".