1125387 has 8 divisors (see below), whose sum is σ = 1667280. Its totient is φ = 750240.

The previous prime is 1125379. The next prime is 1125391. The reversal of 1125387 is 7835211.

It is not a de Polignac number, because 1125387 - 2³ = 1125379 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 41681 = 1125387 / (1 + 1 + 2 + 5 + 3 + 8 + 7).

It is a self number, because there is not a number n which added to its sum of digits gives 1125387.

It is not an unprimeable number, because it can be changed into a prime (1125317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20814 + ... + 20867.

It is an arithmetic number, because the mean of its divisors is an integer number (208410).

2^1125387 is an apocalyptic number.

1125387 is a deficient number, since it is larger than the sum of its proper divisors (541893).

1125387 is an equidigital number, since it uses as much as digits as its factorization.

1125387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41690 (or 41684 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 1125387 is about 1060.8425896428. The cubic root of 1125387 is about 104.0161155993.

The spelling of 1125387 in words is "one million, one hundred twenty-five thousand, three hundred eighty-seven".