260111129 has 2 divisors, whose sum is σ = 260111130. Its totient is φ = 260111128.

The previous prime is 260111123. The next prime is 260111141. The reversal of 260111129 is 921111062.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 259951129 + 160000 = 16123^2 + 400^2 .

It is a cyclic number.

It is not a de Polignac number, because 260111129 - 2¹⁶ = 260045593 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (260111123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130055564 + 130055565.

It is an arithmetic number, because the mean of its divisors is an integer number (130055565).

Almost surely, 2^260111129 is an apocalyptic number.

It is an amenable number.

260111129 is a deficient number, since it is larger than the sum of its proper divisors (1).

260111129 is an equidigital number, since it uses as much as digits as its factorization.

260111129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 260111129 is about 16127.9610924630. The cubic root of 260111129 is about 638.3413504361.

The spelling of 260111129 in words is "two hundred sixty million, one hundred eleven thousand, one hundred twenty-nine".