1825261 has 2 divisors, whose sum is σ = 1825262. Its totient is φ = 1825260.

The previous prime is 1825217. The next prime is 1825277. The reversal of 1825261 is 1625281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 988036 + 837225 = 994^2 + 915^2 .

It is a cyclic number.

It is not a de Polignac number, because 1825261 - 2⁹ = 1824749 is a prime.

1825261 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1825661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 912630 + 912631.

It is an arithmetic number, because the mean of its divisors is an integer number (912631).

2^1825261 is an apocalyptic number.

It is an amenable number.

1825261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1825261 is an equidigital number, since it uses as much as digits as its factorization.

1825261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960, while the sum is 25.

The square root of 1825261 is about 1351.0222055910. The cubic root of 1825261 is about 122.2104448094.

The spelling of 1825261 in words is "one million, eight hundred twenty-five thousand, two hundred sixty-one".