1205261 has 4 divisors (see below), whose sum is σ = 1213500. Its totient is φ = 1197024.

The previous prime is 1205257. The next prime is 1205287. The reversal of 1205261 is 1625021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 62500 + 1142761 = 250^2 + 1069^2 .

It is a cyclic number.

It is not a de Polignac number, because 1205261 - 2² = 1205257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3896 + ... + 4193.

It is an arithmetic number, because the mean of its divisors is an integer number (303375).

2^1205261 is an apocalyptic number.

It is an amenable number.

1205261 is a deficient number, since it is larger than the sum of its proper divisors (8239).

1205261 is an equidigital number, since it uses as much as digits as its factorization.

1205261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8238.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1205261 is about 1097.8437958107. The cubic root of 1205261 is about 106.4209262645.

The spelling of 1205261 in words is "one million, two hundred five thousand, two hundred sixty-one".