263611141 has 2 divisors, whose sum is σ = 263611142. Its totient is φ = 263611140.

The previous prime is 263611097. The next prime is 263611151. The reversal of 263611141 is 141116362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228161025 + 35450116 = 15105^2 + 5954^2 .

It is a cyclic number.

It is not a de Polignac number, because 263611141 - 2⁷ = 263611013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263611151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131805570 + 131805571.

It is an arithmetic number, because the mean of its divisors is an integer number (131805571).

Almost surely, 2^263611141 is an apocalyptic number.

It is an amenable number.

263611141 is a deficient number, since it is larger than the sum of its proper divisors (1).

263611141 is an equidigital number, since it uses as much as digits as its factorization.

263611141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 25.

The square root of 263611141 is about 16236.1060910552. The cubic root of 263611141 is about 641.1917418863.

The spelling of 263611141 in words is "two hundred sixty-three million, six hundred eleven thousand, one hundred forty-one".