259715641 has 2 divisors, whose sum is σ = 259715642. Its totient is φ = 259715640.

The previous prime is 259715629. The next prime is 259715653. The reversal of 259715641 is 146517952.

It is a balanced prime because it is at equal distance from previous prime (259715629) and next prime (259715653).

It can be written as a sum of positive squares in only one way, i.e., 200364025 + 59351616 = 14155^2 + 7704^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-259715641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 259715594 and 259715603.

It is not a weakly prime, because it can be changed into another prime (259715611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129857820 + 129857821.

It is an arithmetic number, because the mean of its divisors is an integer number (129857821).

Almost surely, 2^259715641 is an apocalyptic number.

It is an amenable number.

259715641 is a deficient number, since it is larger than the sum of its proper divisors (1).

259715641 is an equidigital number, since it uses as much as digits as its factorization.

259715641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 40.

The square root of 259715641 is about 16115.6954860782. The cubic root of 259715641 is about 638.0176626302.

The spelling of 259715641 in words is "two hundred fifty-nine million, seven hundred fifteen thousand, six hundred forty-one".