1151140 has 12 divisors (see below), whose sum is σ = 2417436. Its totient is φ = 460448.

The previous prime is 1151113. The next prime is 1151141. The reversal of 1151140 is 411511.

It can be written as a sum of positive squares in 2 ways, for example, as 278784 + 872356 = 528^2 + 934^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1151140.

It is not an unprimeable number, because it can be changed into a prime (1151141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28759 + ... + 28798.

It is an arithmetic number, because the mean of its divisors is an integer number (201453).

2^1151140 is an apocalyptic number.

1151140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1151140 is an abundant number, since it is smaller than the sum of its proper divisors (1266296).

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

1151140 is a wasteful number, since it uses less digits than its factorization.

1151140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57566 (or 57564 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 1151140 is about 1072.9119255559. The cubic root of 1151140 is about 104.8035631910.

Adding to 1151140 its reverse (411511), we get a palindrome (1562651).

The spelling of 1151140 in words is "one million, one hundred fifty-one thousand, one hundred forty".