263410531 has 2 divisors, whose sum is σ = 263410532. Its totient is φ = 263410530.

The previous prime is 263410523. The next prime is 263410577. The reversal of 263410531 is 135014362.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 263410531 - 2³ = 263410523 is a prime.

It is a super-2 number, since 2×263410531² = 138770215683403922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 263410496 and 263410505.

It is not a weakly prime, because it can be changed into another prime (263440531) 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, 131705265 + 131705266.

It is an arithmetic number, because the mean of its divisors is an integer number (131705266).

Almost surely, 2^263410531 is an apocalyptic number.

263410531 is a deficient number, since it is larger than the sum of its proper divisors (1).

263410531 is an equidigital number, since it uses as much as digits as its factorization.

263410531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 263410531 is about 16229.9270177041. The cubic root of 263410531 is about 641.0290500795.

Adding to 263410531 its reverse (135014362), we get a palindrome (398424893).

The spelling of 263410531 in words is "two hundred sixty-three million, four hundred ten thousand, five hundred thirty-one".