261848 has 16 divisors (see below), whose sum is σ = 498960. Its totient is φ = 128800.

The previous prime is 261847. The next prime is 261881. The reversal of 261848 is 848162.

261848 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×261848³ = 53860333476696576, which contains 333 as substring.

It is a nialpdrome in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 261848.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261847) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 338 + ... + 798.

It is an arithmetic number, because the mean of its divisors is an integer number (31185).

261848 is a Friedman number, since it can be written as 8^6-148*2, using all its digits and the basic arithmetic operations.

2²⁶¹⁸⁴⁸ is an apocalyptic number.

It is an amenable number.

261848 is a deficient number, since it is larger than the sum of its proper divisors (237112).

261848 is a wasteful number, since it uses less digits than its factorization.

261848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538 (or 534 counting only the distinct ones).

The product of its digits is 3072, while the sum is 29.

The square root of 261848 is about 511.7108558551. The cubic root of 261848 is about 63.9759023861.

The spelling of 261848 in words is "two hundred sixty-one thousand, eight hundred forty-eight".