1725124789 has 2 divisors, whose sum is σ = 1725124790. Its totient is φ = 1725124788.

The previous prime is 1725124763. The next prime is 1725124811. The reversal of 1725124789 is 9874215271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1403101764 + 322023025 = 37458^2 + 17945^2 .

It is a cyclic number.

It is not a de Polignac number, because 1725124789 - 2¹¹ = 1725122741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1725184789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 862562394 + 862562395.

It is an arithmetic number, because the mean of its divisors is an integer number (862562395).

Almost surely, 2^1725124789 is an apocalyptic number.

It is an amenable number.

1725124789 is a deficient number, since it is larger than the sum of its proper divisors (1).

1725124789 is an equidigital number, since it uses as much as digits as its factorization.

1725124789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 46.

The square root of 1725124789 is about 41534.6215704441. The cubic root of 1725124789 is about 1199.3340724169.

The spelling of 1725124789 in words is "one billion, seven hundred twenty-five million, one hundred twenty-four thousand, seven hundred eighty-nine".