263941 has 2 divisors, whose sum is σ = 263942. Its totient is φ = 263940.

The previous prime is 263933. The next prime is 263951. The reversal of 263941 is 149362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198916 + 65025 = 446^2 + 255^2 .

It is a cyclic number.

It is not a de Polignac number, because 263941 - 2³ = 263933 is a prime.

It is a nialpdrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131970 + 131971.

It is an arithmetic number, because the mean of its divisors is an integer number (131971).

2²⁶³⁹⁴¹ is an apocalyptic number.

It is an amenable number.

263941 is a deficient number, since it is larger than the sum of its proper divisors (1).

263941 is an equidigital number, since it uses as much as digits as its factorization.

263941 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 263941 is about 513.7518856413. The cubic root of 263941 is about 64.1459073417.

The spelling of 263941 in words is "two hundred sixty-three thousand, nine hundred forty-one".