261482 has 16 divisors (see below), whose sum is σ = 430920. Its totient is φ = 118272.

The previous prime is 261467. The next prime is 261509. The reversal of 261482 is 284162.

It can be written as a sum of positive squares in 4 ways, for example, as 58081 + 203401 = 241^2 + 451^2 .

It is a nialpdrome in base 8.

It is a zygodrome in base 4.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 261482.

It is an unprimeable number.

261482 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2258 + ... + 2370.

2²⁶¹⁴⁸² is an apocalyptic number.

261482 is a deficient number, since it is larger than the sum of its proper divisors (169438).

261482 is a wasteful number, since it uses less digits than its factorization.

261482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217.

The product of its digits is 768, while the sum is 23.

The square root of 261482 is about 511.3531069623. The cubic root of 261482 is about 63.9460808887.

The spelling of 261482 in words is "two hundred sixty-one thousand, four hundred eighty-two".