1125666 has 24 divisors (see below), whose sum is σ = 2545920. Its totient is φ = 358776.

The previous prime is 1125653. The next prime is 1125679. The reversal of 1125666 is 6665211.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1125653) and next prime (1125679).

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 946 + ... + 1773.

It is an arithmetic number, because the mean of its divisors is an integer number (106080).

2^1125666 is an apocalyptic number.

1125666 is an abundant number, since it is smaller than the sum of its proper divisors (1420254).

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

1125666 is a wasteful number, since it uses less digits than its factorization.

1125666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2750 (or 2747 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 1125666 is about 1060.9740807390. The cubic root of 1125666 is about 104.0247105977.

It can be divided in two parts, 112 and 5666, that added together give a triangular number (5778 = T₁₀₇).

The spelling of 1125666 in words is "one million, one hundred twenty-five thousand, six hundred sixty-six".