1125726 has 32 divisors (see below), whose sum is σ = 2630400. Its totient is φ = 321048.

The previous prime is 1125713. The next prime is 1125739. The reversal of 1125726 is 6275211.

1125726 = 529² + 530² + ... + 532².

It is an interprime number because it is at equal distance from previous prime (1125713) and next prime (1125739).

It is a junction number, because it is equal to n+sod(n) for n = 1125696 and 1125705.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1785 + ... + 2331.

It is an arithmetic number, because the mean of its divisors is an integer number (82200).

2^1125726 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1125726, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1315200).

1125726 is an abundant number, since it is smaller than the sum of its proper divisors (1504674).

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

1125726 is an equidigital number, since it uses as much as digits as its factorization.

1125726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573 (or 559 counting only the distinct ones).

The product of its digits is 840, while the sum is 24.

The square root of 1125726 is about 1061.0023562651. The cubic root of 1125726 is about 104.0265587989.

Adding to 1125726 its sum of digits (24), we get a triangular number (1125750 = T₁₅₀₀).

The spelling of 1125726 in words is "one million, one hundred twenty-five thousand, seven hundred twenty-six".