1153311240 has 32 divisors (see below), whose sum is σ = 3459934080. Its totient is φ = 307549632.

The previous prime is 1153311199. The next prime is 1153311253. The reversal of 1153311240 is 421133511.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4805344 + ... + 4805583.

It is an arithmetic number, because the mean of its divisors is an integer number (108122940).

Almost surely, 2^1153311240 is an apocalyptic number.

1153311240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1153311240 is an abundant number, since it is smaller than the sum of its proper divisors (2306622840).

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

1153311240 is a wasteful number, since it uses less digits than its factorization.

1153311240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9610941 (or 9610937 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1153311240 is about 33960.4363929558. The cubic root of 1153311240 is about 1048.6941407806.

Adding to 1153311240 its reverse (421133511), we get a palindrome (1574444751).

The spelling of 1153311240 in words is "one billion, one hundred fifty-three million, three hundred eleven thousand, two hundred forty".