1166725 has 24 divisors (see below), whose sum is σ = 1696320. Its totient is φ = 779520.

The previous prime is 1166723. The next prime is 1166729. The reversal of 1166725 is 5276611.

It is not a de Polignac number, because 1166725 - 2¹ = 1166723 is a prime.

It is a super-2 number, since 2×1166725² = 2722494451250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1166693 and 1166702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166723) 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, 10269 + ... + 10381.

It is an arithmetic number, because the mean of its divisors is an integer number (70680).

2^1166725 is an apocalyptic number.

It is an amenable number.

1166725 is a deficient number, since it is larger than the sum of its proper divisors (529595).

1166725 is a wasteful number, since it uses less digits than its factorization.

1166725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 184 counting only the distinct ones).

The product of its digits is 2520, while the sum is 28.

The square root of 1166725 is about 1080.1504524834. The cubic root of 1166725 is about 105.2744144760.

It can be divided in two parts, 1166 and 725, that added together give a triangular number (1891 = T₆₁).

The spelling of 1166725 in words is "one million, one hundred sixty-six thousand, seven hundred twenty-five".