260128541 has 2 divisors, whose sum is σ = 260128542. Its totient is φ = 260128540.

The previous prime is 260128511. The next prime is 260128549. The reversal of 260128541 is 145821062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 253605625 + 6522916 = 15925^2 + 2554^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-260128541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260128549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130064270 + 130064271.

It is an arithmetic number, because the mean of its divisors is an integer number (130064271).

Almost surely, 2^260128541 is an apocalyptic number.

It is an amenable number.

260128541 is a deficient number, since it is larger than the sum of its proper divisors (1).

260128541 is an equidigital number, since it uses as much as digits as its factorization.

260128541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 260128541 is about 16128.5008912794. The cubic root of 260128541 is about 638.3555937733.

The spelling of 260128541 in words is "two hundred sixty million, one hundred twenty-eight thousand, five hundred forty-one".