261130459 has 2 divisors, whose sum is σ = 261130460. Its totient is φ = 261130458.

The previous prime is 261130439. The next prime is 261130469. The reversal of 261130459 is 954031162.

261130459 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 261130459 - 2¹⁵ = 261097691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 261130459.

It is not a weakly prime, because it can be changed into another prime (261130439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130565229 + 130565230.

It is an arithmetic number, because the mean of its divisors is an integer number (130565230).

Almost surely, 2^261130459 is an apocalyptic number.

261130459 is a deficient number, since it is larger than the sum of its proper divisors (1).

261130459 is an equidigital number, since it uses as much as digits as its factorization.

261130459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 261130459 is about 16159.5315216748. The cubic root of 261130459 is about 639.1741129163.

The spelling of 261130459 in words is "two hundred sixty-one million, one hundred thirty thousand, four hundred fifty-nine".