1147140 has 36 divisors (see below), whose sum is σ = 3480204. Its totient is φ = 305856.

The previous prime is 1147127. The next prime is 1147141. The reversal of 1147140 is 417411.

It can be written as a sum of positive squares in 2 ways, for example, as 695556 + 451584 = 834^2 + 672^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1147141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3007 + ... + 3366.

2^1147140 is an apocalyptic number.

1147140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1147140 is an abundant number, since it is smaller than the sum of its proper divisors (2333064).

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

1147140 is a wasteful number, since it uses less digits than its factorization.

1147140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6388 (or 6383 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 1147140 is about 1071.0462174902. The cubic root of 1147140 is about 104.6820312730.

It can be divided in two parts, 11471 and 40, that added together give a palindrome (11511).

The spelling of 1147140 in words is "one million, one hundred forty-seven thousand, one hundred forty".