1205648 has 10 divisors (see below), whose sum is σ = 2335974. Its totient is φ = 602816.

The previous prime is 1205647. The next prime is 1205653. The reversal of 1205648 is 8465021.

It can be written as a sum of positive squares in only one way, i.e., 1183744 + 21904 = 1088^2 + 148^2 .

It is not an unprimeable number, because it can be changed into a prime (1205647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37661 + ... + 37692.

2^1205648 is an apocalyptic number.

It is an amenable number.

1205648 is a deficient number, since it is larger than the sum of its proper divisors (1130326).

1205648 is an equidigital number, since it uses as much as digits as its factorization.

1205648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75361 (or 75355 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 1205648 is about 1098.0200362471. The cubic root of 1205648 is about 106.4323153582.

The spelling of 1205648 in words is "one million, two hundred five thousand, six hundred forty-eight".