261296411 has 2 divisors, whose sum is σ = 261296412. Its totient is φ = 261296410.

The previous prime is 261296407. The next prime is 261296429. The reversal of 261296411 is 114692162.

261296411 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 261296411 - 2² = 261296407 is a prime.

It is not a weakly prime, because it can be changed into another prime (261296471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130648205 + 130648206.

It is an arithmetic number, because the mean of its divisors is an integer number (130648206).

Almost surely, 2^261296411 is an apocalyptic number.

261296411 is a deficient number, since it is larger than the sum of its proper divisors (1).

261296411 is an equidigital number, since it uses as much as digits as its factorization.

261296411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 32.

The square root of 261296411 is about 16164.6655084477. The cubic root of 261296411 is about 639.3094855580.

The spelling of 261296411 in words is "two hundred sixty-one million, two hundred ninety-six thousand, four hundred eleven".