263801129 has 2 divisors, whose sum is σ = 263801130. Its totient is φ = 263801128.

The previous prime is 263801113. The next prime is 263801159. The reversal of 263801129 is 921108362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 224400400 + 39400729 = 14980^2 + 6277^2 .

It is a cyclic number.

It is not a de Polignac number, because 263801129 - 2⁴ = 263801113 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 263801095 and 263801104.

It is not a weakly prime, because it can be changed into another prime (263801159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131900564 + 131900565.

It is an arithmetic number, because the mean of its divisors is an integer number (131900565).

Almost surely, 2^263801129 is an apocalyptic number.

It is an amenable number.

263801129 is a deficient number, since it is larger than the sum of its proper divisors (1).

263801129 is an equidigital number, since it uses as much as digits as its factorization.

263801129 is an odious number, because the sum of its binary digits is odd.

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

The square root of 263801129 is about 16241.9558243458. The cubic root of 263801129 is about 641.3457433225.

The spelling of 263801129 in words is "two hundred sixty-three million, eight hundred one thousand, one hundred twenty-nine".