1155125 has 8 divisors (see below), whose sum is σ = 1441752. Its totient is φ = 924000.

The previous prime is 1155107. The next prime is 1155127. The reversal of 1155125 is 5215511.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18769 + 1136356 = 137^2 + 1066^2 .

It is not a de Polignac number, because 1155125 - 2⁶ = 1155061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1155097 and 1155106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4496 + ... + 4745.

It is an arithmetic number, because the mean of its divisors is an integer number (180219).

2^1155125 is an apocalyptic number.

It is an amenable number.

1155125 is a deficient number, since it is larger than the sum of its proper divisors (286627).

1155125 is an frugal number, since it uses more digits than its factorization.

1155125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9256 (or 9246 counting only the distinct ones).

The product of its digits is 250, while the sum is 20.

The square root of 1155125 is about 1074.7674167000. The cubic root of 1155125 is about 104.9243597332.

The spelling of 1155125 in words is "one million, one hundred fifty-five thousand, one hundred twenty-five".