263149 has 4 divisors (see below), whose sum is σ = 266560. Its totient is φ = 259740.

The previous prime is 263129. The next prime is 263167. The reversal of 263149 is 941362.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 263149 - 2¹¹ = 261101 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 6³ + 1 + 3³ + 4⁹ + 9³ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1587 + ... + 1744.

It is an arithmetic number, because the mean of its divisors is an integer number (66640).

2²⁶³¹⁴⁹ is an apocalyptic number.

It is an amenable number.

263149 is a deficient number, since it is larger than the sum of its proper divisors (3411).

263149 is an equidigital number, since it uses as much as digits as its factorization.

263149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3410.

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

The square root of 263149 is about 512.9805064522. The cubic root of 263149 is about 64.0816828137.

The spelling of 263149 in words is "two hundred sixty-three thousand, one hundred forty-nine".