1151331040 has 48 divisors (see below), whose sum is σ = 2733901632. Its totient is φ = 458182144.

The previous prime is 1151331007. The next prime is 1151331047. The reversal of 1151331040 is 401331511.

It is a junction number, because it is equal to n+sod(n) for n = 1151330999 and 1151331017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151331047) 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, 13257 + ... + 49783.

It is an arithmetic number, because the mean of its divisors is an integer number (56956284).

Almost surely, 2^1151331040 is an apocalyptic number.

1151331040 is a gapful number since it is divisible by the number (10) 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 1151331040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1366950816).

1151331040 is an abundant number, since it is smaller than the sum of its proper divisors (1582570592).

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

1151331040 is a wasteful number, since it uses less digits than its factorization.

1151331040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36739 (or 36731 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1151331040 is about 33931.2693543876. The cubic root of 1151331040 is about 1048.0936050649.

Adding to 1151331040 its reverse (401331511), we get a palindrome (1552662551).

The spelling of 1151331040 in words is "one billion, one hundred fifty-one million, three hundred thirty-one thousand, forty".