1125090 has 48 divisors (see below), whose sum is σ = 3040128. Its totient is φ = 299376.

The previous prime is 1125053. The next prime is 1125097. The reversal of 1125090 is 905211.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125097) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2199 + ... + 2661.

It is an arithmetic number, because the mean of its divisors is an integer number (63336).

2^1125090 is an apocalyptic number.

1125090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1125090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1520064).

1125090 is an abundant number, since it is smaller than the sum of its proper divisors (1915038).

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

1125090 is an equidigital number, since it uses as much as digits as its factorization.

1125090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485 (or 473 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 1125090 is about 1060.7025973382. The cubic root of 1125090 is about 104.0069645237.

The spelling of 1125090 in words is "one million, one hundred twenty-five thousand, ninety".