1188125 has 10 divisors (see below), whose sum is σ = 1485462. Its totient is φ = 950000.

The previous prime is 1188073. The next prime is 1188149. The reversal of 1188125 is 5218811.

It can be written as a sum of positive squares in 5 ways, for example, as 755161 + 432964 = 869^2 + 658^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1188125 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1188094 and 1188103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 326 + ... + 1575.

2^1188125 is an apocalyptic number.

It is an amenable number.

1188125 is a deficient number, since it is larger than the sum of its proper divisors (297337).

1188125 is an frugal number, since it uses more digits than its factorization.

1188125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1921 (or 1906 counting only the distinct ones).

The product of its digits is 640, while the sum is 26.

The square root of 1188125 is about 1090.0114678296. The cubic root of 1188125 is about 105.9141645216.

It can be divided in two parts, 11881 and 25, that multiplied together give a square (297025 = 545²).

The spelling of 1188125 in words is "one million, one hundred eighty-eight thousand, one hundred twenty-five".