263126131 has 2 divisors, whose sum is σ = 263126132. Its totient is φ = 263126130.

The previous prime is 263126113. The next prime is 263126183. The reversal of 263126131 is 131621362.

Together with previous prime (263126113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 263126131 - 2⁵ = 263126099 is a prime.

It is a super-2 number, since 2×263126131² = 138470721630058322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 263126096 and 263126105.

It is not a weakly prime, because it can be changed into another prime (263126431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131563065 + 131563066.

It is an arithmetic number, because the mean of its divisors is an integer number (131563066).

Almost surely, 2^263126131 is an apocalyptic number.

263126131 is a deficient number, since it is larger than the sum of its proper divisors (1).

263126131 is an equidigital number, since it uses as much as digits as its factorization.

263126131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 25.

The square root of 263126131 is about 16221.1630594110. The cubic root of 263126131 is about 640.7982641748.

Adding to 263126131 its reverse (131621362), we get a palindrome (394747493).

The spelling of 263126131 in words is "two hundred sixty-three million, one hundred twenty-six thousand, one hundred thirty-one".