1127540 has 12 divisors (see below), whose sum is σ = 2367876. Its totient is φ = 451008.

The previous prime is 1127537. The next prime is 1127557. The reversal of 1127540 is 457211.

It can be written as a sum of positive squares in 2 ways, for example, as 163216 + 964324 = 404^2 + 982^2 .

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: 56377 = 1127540 / (1 + 1 + 2 + 7 + 5 + 4 + 0).

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, 28169 + ... + 28208.

It is an arithmetic number, because the mean of its divisors is an integer number (197323).

2^1127540 is an apocalyptic number.

1127540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1127540 is an abundant number, since it is smaller than the sum of its proper divisors (1240336).

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

1127540 is a wasteful number, since it uses less digits than its factorization.

1127540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56386 (or 56384 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 1127540 is about 1061.8568641771. The cubic root of 1127540 is about 104.0824051027.

The spelling of 1127540 in words is "one million, one hundred twenty-seven thousand, five hundred forty".