1151540260 has 48 divisors (see below), whose sum is σ = 2688279552. Its totient is φ = 411465600.

The previous prime is 1151540251. The next prime is 1151540263. The reversal of 1151540260 is 620451511.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1151540263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63376 + ... + 79495.

It is an arithmetic number, because the mean of its divisors is an integer number (56005824).

Almost surely, 2^1151540260 is an apocalyptic number.

1151540260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1151540260 is an abundant number, since it is smaller than the sum of its proper divisors (1536739292).

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

1151540260 is a wasteful number, since it uses less digits than its factorization.

1151540260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142924 (or 142922 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1151540260 is about 33934.3522112917. The cubic root of 1151540260 is about 1048.1570877805.

Adding to 1151540260 its reverse (620451511), we get a palindrome (1771991771).

The spelling of 1151540260 in words is "one billion, one hundred fifty-one million, five hundred forty thousand, two hundred sixty".