725241239 has 2 divisors, whose sum is σ = 725241240. Its totient is φ = 725241238.

The previous prime is 725241227. The next prime is 725241263. The reversal of 725241239 is 932142527.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 725241239 - 2²⁰ = 724192663 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 725241199 and 725241208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725241739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362620619 + 362620620.

It is an arithmetic number, because the mean of its divisors is an integer number (362620620).

Almost surely, 2^725241239 is an apocalyptic number.

725241239 is a deficient number, since it is larger than the sum of its proper divisors (1).

725241239 is an equidigital number, since it uses as much as digits as its factorization.

725241239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 35.

The square root of 725241239 is about 26930.3033588558. The cubic root of 725241239 is about 898.4505186463.

The spelling of 725241239 in words is "seven hundred twenty-five million, two hundred forty-one thousand, two hundred thirty-nine".