1125145 has 32 divisors (see below), whose sum is σ = 1714176. Its totient is φ = 691200.

The previous prime is 1125143. The next prime is 1125151. The reversal of 1125145 is 5415211.

1125145 = T₆ + T₇ + ... + T₁₈₈.

It is not a de Polignac number, because 1125145 - 2¹ = 1125143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1125143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18415 + ... + 18475.

It is an arithmetic number, because the mean of its divisors is an integer number (53568).

2^1125145 is an apocalyptic number.

It is an amenable number.

1125145 is a deficient number, since it is larger than the sum of its proper divisors (589031).

1125145 is a wasteful number, since it uses less digits than its factorization.

1125145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121.

The product of its digits is 200, while the sum is 19.

The square root of 1125145 is about 1060.7285232330. The cubic root of 1125145 is about 104.0086592888.

The spelling of 1125145 in words is "one million, one hundred twenty-five thousand, one hundred forty-five".