261460117 has 2 divisors, whose sum is σ = 261460118. Its totient is φ = 261460116.

The previous prime is 261460099. The next prime is 261460123. The reversal of 261460117 is 711064162.

261460117 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 can be written as a sum of positive squares in only one way, i.e., 156725361 + 104734756 = 12519^2 + 10234^2 .

It is a cyclic number.

It is not a de Polignac number, because 261460117 - 2¹⁵ = 261427349 is a prime.

It is a super-3 number, since 3×261460117³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (261460517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130730058 + 130730059.

It is an arithmetic number, because the mean of its divisors is an integer number (130730059).

Almost surely, 2^261460117 is an apocalyptic number.

It is an amenable number.

261460117 is a deficient number, since it is larger than the sum of its proper divisors (1).

261460117 is an equidigital number, since it uses as much as digits as its factorization.

261460117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 261460117 is about 16169.7284145405. The cubic root of 261460117 is about 639.4429699141.

The spelling of 261460117 in words is "two hundred sixty-one million, four hundred sixty thousand, one hundred seventeen".