1725481 has 2 divisors, whose sum is σ = 1725482. Its totient is φ = 1725480.

The previous prime is 1725469. The next prime is 1725497. The reversal of 1725481 is 1845271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1625625 + 99856 = 1275^2 + 316^2 .

It is an emirp because it is prime and its reverse (1845271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1725481 - 2⁹ = 1724969 is a prime.

It is a super-2 number, since 2×1725481² = 5954569362722, which contains 22 as substring.

1725481 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1725781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 862740 + 862741.

It is an arithmetic number, because the mean of its divisors is an integer number (862741).

2^1725481 is an apocalyptic number.

It is an amenable number.

1725481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1725481 is an equidigital number, since it uses as much as digits as its factorization.

1725481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2240, while the sum is 28.

The square root of 1725481 is about 1313.5756544638. The cubic root of 1725481 is about 119.9416614579.

The spelling of 1725481 in words is "one million, seven hundred twenty-five thousand, four hundred eighty-one".