1125380 has 12 divisors (see below), whose sum is σ = 2363340. Its totient is φ = 450144.

The previous prime is 1125379. The next prime is 1125391. The reversal of 1125380 is 835211.

It can be written as a sum of positive squares in 2 ways, for example, as 861184 + 264196 = 928^2 + 514^2 .

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: 56269 = 1125380 / (1 + 1 + 2 + 5 + 3 + 8 + 0).

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, 28115 + ... + 28154.

It is an arithmetic number, because the mean of its divisors is an integer number (196945).

2^1125380 is an apocalyptic number.

1125380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1125380 is an abundant number, since it is smaller than the sum of its proper divisors (1237960).

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

1125380 is a wasteful number, since it uses less digits than its factorization.

1125380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56278 (or 56276 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1125380 is about 1060.8392903734. The cubic root of 1125380 is about 104.0158999359.

The spelling of 1125380 in words is "one million, one hundred twenty-five thousand, three hundred eighty".