1205725 has 12 divisors (see below), whose sum is σ = 1583604. Its totient is φ = 907520.

The previous prime is 1205717. The next prime is 1205731. The reversal of 1205725 is 5275021.

It can be written as a sum of positive squares in 6 ways, for example, as 101124 + 1104601 = 318^2 + 1051^2 .

It is not a de Polignac number, because 1205725 - 2³ = 1205717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1205696 and 1205705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 994 + ... + 1843.

It is an arithmetic number, because the mean of its divisors is an integer number (131967).

2^1205725 is an apocalyptic number.

It is an amenable number.

1205725 is a deficient number, since it is larger than the sum of its proper divisors (377879).

1205725 is a wasteful number, since it uses less digits than its factorization.

1205725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2864 (or 2859 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 1205725 is about 1098.0550987997. The cubic root of 1205725 is about 106.4345811145.

The spelling of 1205725 in words is "one million, two hundred five thousand, seven hundred twenty-five".