1150531040 has 48 divisors (see below), whose sum is σ = 2721881232. Its totient is φ = 459577344.

The previous prime is 1150531033. The next prime is 1150531043. The reversal of 1150531040 is 401350511.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1150531043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121352 + ... + 130488.

It is an arithmetic number, because the mean of its divisors is an integer number (56705859).

Almost surely, 2^1150531040 is an apocalyptic number.

1150531040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1150531040 is an abundant number, since it is smaller than the sum of its proper divisors (1571350192).

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

1150531040 is an equidigital number, since it uses as much as digits as its factorization.

1150531040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9939 (or 9931 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1150531040 is about 33919.4787695802. The cubic root of 1150531040 is about 1047.8507935902.

Adding to 1150531040 its reverse (401350511), we get a palindrome (1551881551).

The spelling of 1150531040 in words is "one billion, one hundred fifty million, five hundred thirty-one thousand, forty".