1166625 has 48 divisors (see below), whose sum is σ = 2263248. Its totient is φ = 576000.

The previous prime is 1166617. The next prime is 1166639. The reversal of 1166625 is 5266611.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 553536 + 613089 = 744^2 + 783^2 .

It is not a de Polignac number, because 1166625 - 2³ = 1166617 is a prime.

It is a super-2 number, since 2×1166625² = 2722027781250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19095 + ... + 19155.

It is an arithmetic number, because the mean of its divisors is an integer number (47151).

2^1166625 is an apocalyptic number.

1166625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1166625 is a deficient number, since it is larger than the sum of its proper divisors (1096623).

1166625 is a wasteful number, since it uses less digits than its factorization.

1166625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99 (or 86 counting only the distinct ones).

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

The square root of 1166625 is about 1080.1041616437. The cubic root of 1166625 is about 105.2714067001.

The spelling of 1166625 in words is "one million, one hundred sixty-six thousand, six hundred twenty-five".