263450129 has 2 divisors, whose sum is σ = 263450130. Its totient is φ = 263450128.

The previous prime is 263450113. The next prime is 263450137. The reversal of 263450129 is 921054362.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173712400 + 89737729 = 13180^2 + 9473^2 .

It is a cyclic number.

It is not a de Polignac number, because 263450129 - 2⁴ = 263450113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 263450095 and 263450104.

It is not a weakly prime, because it can be changed into another prime (263450149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131725064 + 131725065.

It is an arithmetic number, because the mean of its divisors is an integer number (131725065).

Almost surely, 2^263450129 is an apocalyptic number.

It is an amenable number.

263450129 is a deficient number, since it is larger than the sum of its proper divisors (1).

263450129 is an equidigital number, since it uses as much as digits as its factorization.

263450129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 263450129 is about 16231.1468787637. The cubic root of 263450129 is about 641.0611700260.

The spelling of 263450129 in words is "two hundred sixty-three million, four hundred fifty thousand, one hundred twenty-nine".