1149140 has 12 divisors (see below), whose sum is σ = 2413236. Its totient is φ = 459648.

The previous prime is 1149131. The next prime is 1149151. The reversal of 1149140 is 419411.

It can be written as a sum of positive squares in 2 ways, for example, as 633616 + 515524 = 796^2 + 718^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 57457 = 1149140 / (1 + 1 + 4 + 9 + 1 + 4 + 0).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28709 + ... + 28748.

It is an arithmetic number, because the mean of its divisors is an integer number (201103).

2^1149140 is an apocalyptic number.

1149140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1149140 is an abundant number, since it is smaller than the sum of its proper divisors (1264096).

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

1149140 is a wasteful number, since it uses less digits than its factorization.

1149140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57466 (or 57464 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1149140 is about 1071.9794774155. The cubic root of 1149140 is about 104.7428324850.

The spelling of 1149140 in words is "one million, one hundred forty-nine thousand, one hundred forty".